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 11:59 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.3 occurred in the TONGA ISLANDS region at 1049 UTC on friday NOVEMBER 11 2022
TSUNAMI waves have been observed
Based on all available data hazardous TSUNAMI waves are forecast for some coasts

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Pago Pago As	-14.3	-170.7	11: 40	0.08	08

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
PTWC	Pago Pago As	-14.3	-170.7	11: 40	0.08	08

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