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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 · 津波注意報

Tsunami Advisory

Evacuate now from dangerous places · official rules as of 2026-10-17

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Evacuate now from dangerous places

津波注意報

Tsunami Advisory

A tsunami of 0.2-1 m is expected (announced as 1 m). Strong currents can knock people over and sweep them away even at this height.

What to do now

  1. Get out of the water and leave the beach, harbour and river mouths now.
  2. Stay away from the coast until the advisory is lifted.

How long: Until it is lifted (解除).

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.