Overall Green Earthquake alert in Tonga on 17 Jun 2021 13:41 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 5.5 in Tonga on 17 Jun 2021 13:41 UTC

2021-06-17 02:41 message from NTWC

Key information extracted from original GTS message :

Evaluation

Measurements Levels

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

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