Overall Green Earthquake alert in United States on 21 Sep 2023 01:13 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 5.4 in United States on 21 Sep 2023 01:13 UTC

2023-09-21 01:18 message from NTWC

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger from this earthquake
Preliminary earthquake parameters
The following parameters are based on a rapid preliminary assessment of the earthquake and changes MAY occur
Magnitude 5.4
Origin time 1714 akdt sep 20.2023 1814 pdt sep 20 2023 0114 UTC sep 21
Coordinates 55.0 north 160 4 west
Depth 20 miles
Location 25 miles se of sand point alaska 575 miles sw of anchorage alaska additional information and next update
Further information will be issued by the UNITED STATES geological survey (earthquake
Usgs
Gov) or the appropriate regional seismic network
This will be the only 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)

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