Overall Green Earthquake in Tonga on 08 Aug 2023 18:38 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 5.9 in Tonga on 08 Aug 2023 18:38 UTC

2023-08-08 18:54 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 6.2 occurred about 89 miles SOUTH of savaii ISLAND at 739 am sst on tuesday AUGUST 8 2023
Based on all available data there is no TSUNAMI threat to AMERICAN SAMOA from this earthquake
Some areas MAY have experienced very strong shaking

Measurements Levels

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

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.