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Educational guide, not an alert service: no live data. Always follow official instructions from JMA, your municipality, police, fire and staff. In an emergency, protect yourself first. Full disclaimer

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Japan alert decoder · 緊急地震速報の取消し

EEW cancelled

Information · official rules as of 2026-10-17

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Information

緊急地震速報の取消し

EEW cancelled

JMA has withdrawn the Earthquake Early Warning: it was triggered by something that was not the predicted quake (noise, or a mis-located or over-estimated event). The warned strong shaking is not expected. If you actually felt strong shaking, treat it as a real earthquake.

What to do now

  1. You can stop sheltering if you felt no strong shaking.
  2. Check JMA's earthquake information for what actually happened.
  3. Keep your phone's emergency alerts on: the next one may be real.

Example: the 2026-10-16 12:40 JST warning (estimated M9.9) was cancelled; JMA fixed the cause at about 21:30 that day.

Issued by: JMA. Live status: JMA warnings map (English)JMA earthquake information (English)JMA tsunami information (English)

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Educational guide, not an alert service: no live data. Always follow official instructions from JMA, your municipality, police, fire and staff. In an emergency, protect yourself first.

Data as of 2026-10-17 from official JMA, Cabinet Office, Cabinet Secretariat (J-ALERT) and Ministry of the Environment pages, with official names from the JMA multilingual dictionary (2026-03-26). Not affiliated with JMA or any government agency.

Educational guide, not an alert service: no live data. Always follow official instructions from JMA, your municipality, police, fire and staff. In an emergency, protect yourself first. Data as of 2026-10-17 from official JMA, Cabinet Office, Cabinet Secretariat (J-ALERT) and Ministry of the Environment pages, with official names from the JMA multilingual dictionary (2026-03-26). Not affiliated with JMA or any government agency.