Overall Green Earthquake alert in United States on 23 Jan 2018 09:31 UTC

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

M 7.9 in United States on 23 Jan 2018 09:31 UTC

2018-01-23 09:46 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 8.0 occurred in the gulf of alaska at 0932 UTC on tuesday JANUARY 23 2018
Based on the preliminary earthquake parameters widespread hazardous TSUNAMI waves are possible

Threat Forecast

Hazardous TSUNAMI waves from this earthquake are possible within the next three hours along some coasts of no areas covered by this message appear to be immediately threatened. however... the situation is still under investigation. this threat evaluation will be updated as soon as further information becomes available.

Measurements Levels

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

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