voidly
Data

Incident record · Japan

Internet connectivity disruption in Japan

Type
disruption
Status
active
Severity
critical
Inspect evidence Cite this incident

Source summary

IODA detected significant connectivity drop in Japan. 34 critical alerts recorded.

Open incident JSON
Reported anomaly rate
65.8%

Source-defined signal; not a universal test-failure percentage.

Source measurement count
34

The record’s count can represent aggregate inputs or alerts.

Incident confidence
75%

A source score, not certainty of intentional censorship.

Linked evidence has its own count and confidence fields. These quantities are not interchangeable.

Follow the evidence

34 linked records.

Inspect the observation, the upstream claim and why it was linked.

Linked observation dates

34 dated · 0 without a verified timezone
IODA34 linked records
May 3, 2026 · 20:50 UTCSingle observed timestamp

Each point is a linked record. Horizontal position shows observation time; stacking separates nearby points. The full records below provide the values. This is not a measured outage-duration chart.

Upstream claims are attributed to their source. Multiple records or source names do not by themselves establish independent corroboration.

IODA34 records · open evidence

outage · critical

ioda:alert:ping-slash24:region:2038:1777841400

IODA detected critical level outage for Aichi

Upstream claim · IODA
Signal value
0.658604
Signal baseline
18,026
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56052939,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2038",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 18026,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6586042383224232,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2038:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Aichi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2030:1777841400

IODA detected critical level outage for Fukuoka

Upstream claim · IODA
Signal value
0.663662
Signal baseline
5,325
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56052949,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2030",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 5325,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.663661971830986,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2030:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Fukuoka",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2027:1777841400

IODA detected critical level outage for Tottori

Upstream claim · IODA
Signal value
0.677371
Signal baseline
1,339
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56052952,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2027",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1339,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6773711725168036,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2027:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Tottori",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2045:1777841400

IODA detected critical level outage for Hokkaido

Upstream claim · IODA
Signal value
0.642127
Signal baseline
3,817
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56052972,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2045",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 3817,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6421273251244433,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2045:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hokkaido",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2053:1777841400

IODA detected critical level outage for Chiba

Upstream claim · IODA
Signal value
0.654357
Signal baseline
20,336
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053047,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2053",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 20336,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6543568056648308,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2053:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Chiba",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2052:1777841400

IODA detected critical level outage for Wakayama

Upstream claim · IODA
Signal value
0.659049
Signal baseline
2,144
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053055,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2052",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 2144,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6590485074626866,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2052:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Wakayama",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2068:1777841400

IODA detected critical level outage for Kagoshima

Upstream claim · IODA
Signal value
0.655035
Signal baseline
1,003
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053074,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2068",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1003,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6550348953140578,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2068:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Kagoshima",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2060:1777841400

IODA detected critical level outage for Akita

Upstream claim · IODA
Signal value
0.697339
Signal baseline
902
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053124,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2060",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 902,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.697339246119734,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2060:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Akita",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2063:1777841400

IODA detected critical level outage for Iwate

Upstream claim · IODA
Signal value
0.655477
Signal baseline
1,132
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053260,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2063",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1132,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6554770318021201,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2063:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Iwate",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2049:1777841400

IODA detected critical level outage for Nara

Upstream claim · IODA
Signal value
0.666207
Signal baseline
3,625
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053299,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2049",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 3625,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6662068965517242,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2049:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Nara",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2043:1777841400

IODA detected critical level outage for Shizuoka

Upstream claim · IODA
Signal value
0.659455
Signal baseline
8,874
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053316,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2043",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 8874,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6594545864322741,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2043:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shizuoka",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2039:1777841400

IODA detected critical level outage for Gifu

Upstream claim · IODA
Signal value
0.666812
Signal baseline
4,589
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053326,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2039",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 4589,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.666811941599477,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2039:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Gifu",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2050:1777841400

IODA detected critical level outage for Osaka

Upstream claim · IODA
Signal value
0.646566
Signal baseline
27,909
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053518,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2050",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 27909,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6465656239922606,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2050:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Osaka",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2047:1777841400

IODA detected critical level outage for Hyōgo

Upstream claim · IODA
Signal value
0.648861
Signal baseline
19,132
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053522,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2047",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 19132,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.648860547773364,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2047:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hyōgo",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2055:1777841400

IODA detected critical level outage for Kanagawa

Upstream claim · IODA
Signal value
0.654383
Signal baseline
27,082
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053620,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2055",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 27082,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6543829850084927,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2055:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Kanagawa",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2058:1777841400

IODA detected critical level outage for Tokyo

Upstream claim · IODA
Signal value
0.642286
Signal baseline
68,264
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053633,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2058",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 68264,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6422858314777921,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2058:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Tokyo",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2024:1777841400

IODA detected critical level outage for Hiroshima

Upstream claim · IODA
Signal value
0.660396
Signal baseline
7,017
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053635,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2024",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 7017,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6603961807040045,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2024:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hiroshima",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2025:1777841400

IODA detected critical level outage for Okayama

Upstream claim · IODA
Signal value
0.676984
Signal baseline
5,331
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053636,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2025",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 5331,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6769836803601575,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2025:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Okayama",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2067:1777841400

IODA detected critical level outage for Nagasaki

Upstream claim · IODA
Signal value
0.656383
Signal baseline
940
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053654,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2067",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 940,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6563829787234042,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2067:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Nagasaki",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2033:1777841400

IODA detected critical level outage for Ehime

Upstream claim · IODA
Signal value
0.645242
Signal baseline
2,396
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053659,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2033",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 2396,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6452420701168614,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2033:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Ehime",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2059:1777841400

IODA detected critical level outage for Yamanashi

Upstream claim · IODA
Signal value
0.648098
Signal baseline
2,208
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053701,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2059",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 2208,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6480978260869565,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2059:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Yamanashi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2035:1777841400

IODA detected critical level outage for Kochi

Upstream claim · IODA
Signal value
0.669614
Signal baseline
1,244
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053703,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2035",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1244,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6696141479099679,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2035:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Kochi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2061:1777841400

IODA detected critical level outage for Aomori

Upstream claim · IODA
Signal value
0.672131
Signal baseline
1,159
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053918,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2061",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1159,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6721311475409836,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2061:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Aomori",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2042:1777841400

IODA detected critical level outage for Nagano

Upstream claim · IODA
Signal value
0.657417
Signal baseline
3,964
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053978,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2042",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 3964,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6574167507568113,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2042:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Nagano",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2032:1777841400

IODA detected critical level outage for Miyazaki

Upstream claim · IODA
Signal value
0.660277
Signal baseline
939
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053979,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2032",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 939,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6602768903088392,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2032:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Miyazaki",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2031:1777841400

IODA detected critical level outage for Kumamoto

Upstream claim · IODA
Signal value
0.660105
Signal baseline
1,524
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56053992,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2031",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1524,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6601049868766404,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2031:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Kumamoto",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2034:1777841400

IODA detected critical level outage for Kagawa

Upstream claim · IODA
Signal value
0.670183
Signal baseline
2,465
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054035,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2034",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 2465,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6701825557809331,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2034:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Kagawa",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2028:1777841400

IODA detected critical level outage for Yamaguchi

Upstream claim · IODA
Signal value
0.645314
Signal baseline
1,686
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054315,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2028",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1686,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6453143534994069,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2028:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Yamaguchi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2048:1777841400

IODA detected critical level outage for Kyoto

Upstream claim · IODA
Signal value
0.664444
Signal baseline
7,948
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054457,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2048",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 7948,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.664443885254152,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2048:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Kyoto",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2037:1777841400

IODA detected critical level outage for Tokushima

Upstream claim · IODA
Signal value
0.643825
Signal baseline
1,328
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054519,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2037",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1328,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6438253012048193,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2037:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Tokushima",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2044:1777841400

IODA detected critical level outage for Toyama

Upstream claim · IODA
Signal value
0.645365
Signal baseline
2,535
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054699,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2044",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 2535,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6453648915187377,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2044:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Toyama",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2029:1777841400

IODA detected critical level outage for Saga

Upstream claim · IODA
Signal value
0.684697
Signal baseline
758
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054708,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2029",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 758,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6846965699208444,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2029:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Saga",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2026:1777841400

IODA detected critical level outage for Shimane

Upstream claim · IODA
Signal value
0.640313
Signal baseline
1,404
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054709,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2026",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 1404,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6403133903133903,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2026:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shimane",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:2069:1777841400

IODA detected critical level outage for Okinawa

Upstream claim · IODA
Signal value
0.626443
Signal baseline
953
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "JP",
  "domain": null,
  "domainCategory": null,
  "id": 56054829,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "2069",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 4,
  "signalBaseline": 953,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6264428121720882,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:2069:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Okinawa",
  "upstreamSeverity": "critical"
}
Source-reported corroboration

The source’s corroboration assessment is separate from incident confidence and evidence-link confidence. Inspect its source list, count and description.

{
  "description": "Single source: ioda",
  "evidenceCount": 34,
  "level": "low",
  "score": 0.6,
  "sourceCount": 1,
  "sources": [
    "ioda"
  ]
}

Declared incident sources: IODA.

This record does not list two distinct sources. Treat it as a single-source or uncorroborated record.

Scope and attribution

What the record names.

Methodology

Affected services

No services named.

Incident mechanism

Infrastructure outage

Individual evidence may carry more specific methods. Those do not automatically describe the entire incident.

Affected domains · 0

Domains named by the source record. Each link opens country-specific OONI measurements; a named domain is not a blanket national-block verdict.

No domains named.

Networks and evidence attribution

ASNs named by this source record: None listed.

This aggregate describes fields literally present in linked evidence. It does not identify who caused an event or prove intent.

{
  "asns_attributed": 0,
  "domains_attributed": 0,
  "methods": [
    {
      "evidence_count": 34,
      "method": "outage"
    }
  ],
  "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
  "sources": [
    "ioda"
  ],
  "top_asns": [],
  "top_domains": []
}
What this record cannot establish

Measurements alone do not attribute an event to a government, ISP or another actor, and do not establish intent. An outage or anomalous result can have several explanations.

The country label is an aggregation scope. It is not a census of every network, city or service. Regional or ASN fields belong to their individual source evidence and should not be expanded into a national claim.

A confirmed duration is not supplied. The source observation window and evidence timestamps do not prove an exact start and stop of blocking.

Signal definitions, baseline rates and model versions depend on the source. This record does not establish a common baseline or calibrated certainty. Use the source’s specific signal definition and evaluation before interpreting a score.

Inspect measurement coverage

Cite this incident

Take the record
with you.

Use the permanent published URL.
The original source title is preserved.

BibTeX ↓RIS ↓Markdown ↓JSON ↓Full citation page →

The record over time.

Created
2026-05-04 00:00:11.485768 · timezone unspecified
Last updated
2026-05-04 00:00:11.485768 · timezone unspecified
Revision
1
Revision history and original fields

Revision-history array unavailable.

Canonical ID: JP-2026-0009. Source ID: JP-2026-0009. Hash ID: 72ce6f3e1af9.

Additional source duration field: 0 hours. It is retained separately from the minutes field and does not establish a verified event duration.

Complete source JSON
{
  "affectedAsns": [],
  "affectedDomains": [],
  "affectedServices": [],
  "anomalyRate": 0.6580829419424257,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 34,
        "method": "outage"
      }
    ],
    "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
    "sources": [
      "ioda"
    ],
    "top_asns": [],
    "top_domains": []
  },
  "confidence": 0.75,
  "corroboration": {
    "description": "Single source: ioda",
    "evidenceCount": 34,
    "level": "low",
    "score": 0.6,
    "sourceCount": 1,
    "sources": [
      "ioda"
    ]
  },
  "country": "JP",
  "countryName": "Japan",
  "createdAt": "2026-05-04T00:00:11.485768",
  "description": "IODA detected significant connectivity drop in Japan. 34 critical alerts recorded.",
  "duration": null,
  "durationHours": 0,
  "endTime": null,
  "evidence": [
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56052939,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2038",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 18026,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.6586042383224232,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2038:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Aichi",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56052949,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2030",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 5325,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.663661971830986,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2030:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Fukuoka",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56052952,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2027",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 1339,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.6773711725168036,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2027:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Tottori",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56052972,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2045",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 3817,
      "signalLevel": "critical",
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      "signalValue": 0.6421273251244433,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2045:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Hokkaido",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56053047,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2053",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
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      "signalLevel": "critical",
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      "signalValue": 0.6543568056648308,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2053:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Chiba",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
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      "domain": null,
      "domainCategory": null,
      "id": 56053055,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2052",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
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      "signalLevel": "critical",
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2052:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Wakayama",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
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      "domainCategory": null,
      "id": 56053074,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2068",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2068:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Kagoshima",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
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      "id": 56053124,
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      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2060:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Akita",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
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      "domain": null,
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      "id": 56053260,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
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      "signalLevel": "critical",
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      "sourceRef": "ioda:alert:ping-slash24:region:2063:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Iwate",
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    },
    {
      "asn": null,
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      "continent": "Asia",
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      "id": 56053299,
      "kind": "alert",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2049",
      "retrievedAt": "2026-05-04T00:00:10.054515",
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      "signalLevel": "critical",
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      "sourceRef": "ioda:alert:ping-slash24:region:2049:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Nara",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56053316,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2043",
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      "riskTier": 4,
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      "signalLevel": "critical",
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2043:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Shizuoka",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56053326,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2039",
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      "riskTier": 4,
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      "signalLevel": "critical",
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2039:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Gifu",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56053518,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2050",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 27909,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.6465656239922606,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2050:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Osaka",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56053522,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2047",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 19132,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.648860547773364,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:2047:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/JP",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Hyōgo",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "JP",
      "domain": null,
      "domainCategory": null,
      "id": 56053620,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2055",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 4,
      "signalBaseline": 27082,
      "signalLevel": "critical",
      "signalType": "outage",
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      "upstreamClaim": "IODA detected critical level outage for Tokushima",
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      "upstreamClaim": "IODA detected critical level outage for Toyama",
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      "upstreamClaim": "IODA detected critical level outage for Shimane",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "2069",
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      "upstreamClaim": "IODA detected critical level outage for Okinawa",
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  "evidenceCount": 34,
  "evidenceSourceBreakdown": {
    "ioda": 34
  },
  "evidenceSpan": {
    "earliest": "2026-05-03T20:50:00Z",
    "latest": "2026-05-03T20:50:00Z"
  },
  "flag": "🇯🇵",
  "generated_at_utc": "2026-09-20T16:18:48.971401Z",
  "hashId": "72ce6f3e1af9",
  "id": "JP-2026-0009",
  "incidentType": "disruption",
  "measurementCount": 34,
  "mechanism": "Infrastructure outage",
  "readableId": "JP-2026-0009",
  "reportUrl": "https://api.voidly.ai/data/incidents/72ce6f3e1af9/report?format=markdown",
  "revision": 1,
  "severity": "critical",
  "severityGrade": "B",
  "sources": [
    "ioda"
  ],
  "startTime": "2026-05-03T20:50:00Z",
  "status": "active",
  "title": "Internet connectivity disruption in Japan",
  "updatedAt": "2026-05-04T00:00:11.485768"
}
All Japan incidents
Sep 19, 2026 · disruptionInternet connectivity disruption in JapanSep 12, 2026 · disruptionInternet connectivity disruption in JapanSep 10, 2026 · disruptionInternet connectivity disruption in JapanSep 9, 2026 · disruptionInternet connectivity disruption in JapanSep 6, 2026 · disruptionInternet connectivity disruption in JapanSep 4, 2026 · disruptionInternet connectivity disruption in Japan
More with the same mechanism · Infrastructure outage
Sep 3, 2026Internet connectivity disruption in JapanSep 2, 2026Internet connectivity disruption in JapanAug 28, 2026Internet connectivity disruption in JapanAug 26, 2026Internet connectivity disruption in JapanAug 23, 2026Internet connectivity disruption in Japan

Related records come from up to 100 recent records in the same country. They do not establish a causal connection.

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