Overall Green Earthquake alert in Tonga on 04 Nov 2019 22:43 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 6.6 in Tonga on 04 Nov 2019 22:43 UTC

2019-11-04 22:51 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 6.9 occurred in the TONGA ISLANDS at 2244 UTC on monday NOVEMBER 4 2019
Based on all available data there is no TSUNAMI threat from this earthquake

Measurements Levels

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

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