Overall Green Earthquake alert in United States on 20 Oct 2020 04:07 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 5.6 in United States on 20 Oct 2020 04:07 UTC

Hazard models

EQ parameters

Shakemap

Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude:	5.6M
Depth:	9.71 Km
Lat/Lon:	54.2533 , -159.644
Event Date:	20 Oct 2020 04:07 UTC 19 Oct 2020 17:07 Local
Exposed Population:	No people within 100km
Source:	NEIC us6000c9u7
Inserted at:	21 Oct 2020 04:12 UTC
INFORM Coping capacity of the alert score:	2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000c9u7	Scaled population (raster)	0
	C1 shakemap	-0.59
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.65

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Date	Mag, Depth	MMI*	Population**	Delay (hh:mm)	Source
1338609	20 Oct 2020 04:07	4.7M, 1km	N/A	Few people (in 100km)	00:10	ALASKA EC
1338610	20 Oct 2020 04:07	5.3M, 31.1km	N/A	No people affected (in 100km)	00:14	ALASKA EC
1338611	20 Oct 2020 04:07	5.6M, 13.78km	3.76	N/A (in MMI>=VII)	02:04	NEIC
1338783	20 Oct 2020 04:07	5.6M, 6.08km	3.76	N/A (in MMI>=VII)	17:48	NEIC
1339020	20 Oct 2020 04:07	5.6M, 9.71km	3.73	N/A (in MMI>=VII)	1d 00:05	NEIC

The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.

The episode that has the last updated information.

* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in United States ,of Alaska. The alertlevel for this event is GREEN

Intensity	Population
	no people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1338611	54.289/-159.665	5.6	13.8	3.757	20 Oct 2020 04:30	00:23	(new episode)
2	1338611	54.289/-159.665	5.6	13.8	3.757	20 Oct 2020 05:30	01:23	(upd of #1)
3	1338611	54.289/-159.665	5.6	13.8	3.757	20 Oct 2020 06:12	02:04	(upd of #2)
4	1338611	54.289/-159.665	5.6	13.8	3.757	20 Oct 2020 13:33	09:26	(upd of #3)
5	1338783	54.307/-159.679	5.6	6.1	3.764	20 Oct 2020 21:59	17:52	(new episode)
6	1338783	54.307/-159.679	5.6	6.1	3.764	21 Oct 2020 04:12	1d 00:05	(upd of #5)
7	1339020	54.253/-159.644	5.6	9.7	3.734	21 Oct 2020 23:31	1d 19:23	(new episode)

Affected Provinces

Intensity	Region Province	Country	Population
	Alaska	United States	no people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.

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.