Overall Green Earthquake alert in Tonga Islands Region on 11 Nov 2022 10:48 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 7.3 in Tonga Islands Region on 11 Nov 2022 10:48 UTC

2022-11-11 11:28 message from NTWC

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger for the u s west coast BRITISH columbia or alaska
Based on earthquake information and historic TSUNAMI records the earthquake is not expected to generate a tsunami
An earthquake has occurred with parameters listed below
Preliminary earthquake parameters - updated
The following parameters are based on a rapid preliminary assessment of the earthquake and changes MAY occur
Magnitude 7.7
Origin time 0149 akst nov 11.2022 0249 pst nov 11 2022 1049 UTC nov 11
Coordinates 19.3 SOUTH 172 0 west
Depth 21 miles
Location in the TONGA ISLANDS region additional information and next update
Refer to the internet site tsunami
Gov for more information
Pacific coastal regions outside california oregon washington BRITISH columbia and alaska should refer to the pacific TSUNAMI warning center messages at tsunami
Gov
This will be the final u s national TSUNAMI warning center message issued for this event unless additional information becomes available

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.