RiskEvents
ClosedLow impactAI Generated

Magnitude 3.7 Earthquake Near Hirosaki, Aomori Prefecture, Japan – May 2026

Occurred 14 May 2026·Detected 13 May 2026·
🇯🇵 Southern Tsugaru region (Tsugaru Nanbu), Aomori Prefecture, northern Japan — shaking felt in Hirosaki City and Nishimeya Village1 reportEnded 29 May 2026
Natural CatastrophePropertyMarine CargoEnergyCasualty & LiabilityReinsurance

A magnitude 3.7 earthquake struck the southern Tsugaru region of Aomori Prefecture, Japan at approximately 02:32 local time on 14 May 2026. The Japan Meteorological Agency reported a focal depth of 10 km, with shaking of seismic intensity 3 recorded in Hirosaki City and Nishimeya Village. Weaker shaking (intensity 1–2) was felt across parts of Aomori and Akita prefectures. No tsunami warning was issued.

AI-generated from linked source reports. See our correction policy.

Impact verdict

Low impact. At M3.7 with a maximum intensity of 3, this is a minor earthquake unlikely to cause significant structural damage or insured losses. No tsunami was generated and the event is confined to a rural/semi-urban area of northern Japan.

View assessment methodology

How we grade what we know -- Known · Reported · Uncertain. Methodology →

Intelligence ledger

Each line expands in place to its underlying sourced claim.

Known7 lines

Earthquake occurred at approximately 02:32 JST on 14 May 2026 (17:32 UTC 13 May 2026)▾
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Magnitude estimated at M3.7 by Japan Meteorological Agency▾
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Focal depth estimated at 10 km▾
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Epicentre located in southern Tsugaru region (Tsugaru Nanbu), Aomori Prefecture▾
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Maximum seismic intensity of 3 recorded in Hirosaki City and Nishimeya Village, Aomori Prefecture▾
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Intensity 1–2 felt in parts of Aomori and Akita prefectures▾
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No tsunami warning issued▾
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Uncertain2 lines

Any structural damage or injuries — not mentioned in the article▾
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Aftershock potential not assessed in this report▾
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Geographic Zone Matches

1 active match

  • Pacific Ring of Fire
    Rule-basedConfidence 100%

Geographic zone matches are RiskEvents spatial/analytical indicators, not coverage determinations or Lloyd's official classifications.

Affected countries

🇯🇵 Japan

Timeline

Status Change2 Jun 2026, 13:05

Lifecycle changed

monitoring → closed

Closure2 Jun 2026, 13:05

Event Closed

auto_closed_monitoring_timeout

Status Change29 May 2026, 05:30

Status changed to monitoring

Auto-transitioned: no updates for 6 hours

active → monitoring

Status Change28 May 2026, 22:36

Status changed to active

remediation: existing authoritative signal

signal → active

Initial Detection13 May 2026, 18:25

Initial Detection

A magnitude 3.7 earthquake struck the southern Tsugaru region of Aomori Prefecture, Japan at approximately 02:32 local time on 14 May 2026. The Japan Meteorological Agency reported a focal depth of 10 km, with shaking of seismic intensity 3 recorded in Hirosaki City and Nishimeya Village. Weaker shaking (intensity 1–2) was felt across parts of Aomori and Akita prefectures. No tsunami warning was issued.

震源地は青森県津軽南部で、震源の深さは10キロ、地震の規模を示すマグニチュードは3.7と推定されています。

Source: NHK News (Japanese) (Mainstream Media) · View source

Lloyd's classifications

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