Overall Green Earthquake alert in Japan on 08 Aug 2024 07:42 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 7.1 in Japan on 08 Aug 2024 07:42 UTC

2024-08-08 09:09 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.1 occurred in kyushu JAPAN at 0742 UTC on thursday AUGUST 8 2024
Based on the preliminary earthquake parameters hazardous TSUNAMI waves are possible for coasts located within 300 km of the earthquake epicenter

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)
Tosashimizu Shikok	32.8	133	08: 31	0.26	26
Dart 21420	28.9	135	08: 32	00	18
Aburatsu Jp	31.6	131.4	08: 11	0.43	22

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
PTWC	Tosashimizu Shikok	32.8	133	08: 31	0.26	26
PTWC	Dart 21420	28.9	135	08: 32	00	18
PTWC	Aburatsu Jp	31.6	131.4	08: 11	0.43	22

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