Overall Green Earthquake alert in United States on 23 Aug 2018 03:35 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 6.3 in United States on 23 Aug 2018 03:35 UTC

2018-08-24 22:01 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake has occurred a TSUNAMI is not expected
Preliminary earthquake parameters
The following parameters are based on a rapid preliminary assessment and changes MAY occur
Magnitude 6.1
Origin time 1935 akdt aug 22.2018 2035 pdt aug 22 2018 0335 UTC aug 23
Coordinates 51.2 north 177 8 west
Depth 35 miles
Location 140 miles e of amchitka alaska 70 miles sw of adak 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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