Overall Green Earthquake in Japan on 08 Dec 2025 14:15 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

M 7.6 in Japan on 08 Dec 2025 14:15 UTC

2025-12-08 14:29 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.6 occurred in the hokkaido JAPAN region at 1415 UTC on monday december 8 2025
Based on the preliminary earthquake parameters hazardous TSUNAMI waves are possible for coasts located within 1000 km of the earthquake epicenter

Threat Forecast

Hazardous TSUNAMI waves from this earthquake are possible within 1000 km of the epicenter along the coasts of JAPAN and RUSSIA

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

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