Overall Green Earthquake alert in United States from 08 Apr 2021 17:10 UTC to 17:10

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 5.9 in United States from 08 Apr 2021 17:10 UTC to 17:10

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:	5.9M
Depth:	1 Km
Lat/Lon:	63.1853 , -148.6798
Event Date:	08 Apr 2021 17:10 UTC 08 Apr 2021 09:10 Local
Exposed Population:	About 1000 people within 100km
Source:	ALASKA EC ak0214icukav
Inserted at:	08 Apr 2021 17:18 UTC
INFORM Coping capacity of the alert score	2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
ALASKA EC	0		0
ak0214icukav	Scaled population (vector)	2.99
	C1 earthquake	1
	C2 earthquake	0
	Country Vulnerability	0
	INFORM_normalised	0.65

Maximum expected impact using different data sources.

Episode Timeline

ID	Date	Mag, Depth	MMI*	Population**	Delay (hh:mm)	Source
1369187	08 Apr 2021 17:10	5.9M, 59.4km	N/A	1 thousand (in 100km)	00:06	ALASKA EC
1369188	08 Apr 2021 17:10	5.9M, 1km	N/A	1 thousand (in 100km)	00:07	ALASKA EC
1369190	08 Apr 2021 17:10	5.9M, 73km	N/A	1 thousand (in 100km)	00:10	ALASKA EC
1369193	08 Apr 2021 17:10	5.7M, 77.7km	4.17	N/A (in MMI>=VII)	00:12	ALASKA EC
1369195	08 Apr 2021 17:10	5.5M, 77.7km	3.96	N/A (in MMI>=VII)	00:41	ALASKA EC

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 , State of Alaska (population 572,432) . The nearest places are Cantwell, Summit, Broad Pass, Colorado, Chulitna, Denali, McKinley Park, and Moody.

Radius	Population
100 km	1400 people
75 km	<1000 people
50 km	<1000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Alaska	United States	570000 people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Cantwell	Alaska	United States	Village	<1000 people	27 km
Summit	Alaska	United States	Village	-	28 km
Broad Pass	Alaska	United States	Village	-	31 km
Colorado	Alaska	United States	Village	-	38 km
Chulitna	Alaska	United States	Village	-	57 km
Denali	Alaska	United States	Village	-	61 km
McKinley Park	Alaska	United States	Village	<1000 people	62 km
Moody	Alaska	United States	Village	-	70 km

see full list

Critical infrastructure

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

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
Golden North Airfield		686				0	22 km
Cantwell		668				0	27 km
Summit	UMM	734				0	28 km
Igloo		610				0	35 km
Denali		625				0	52 km
Road Commission Nr 1		770				0	59 km
Era Denali	MCL	482	Civ.	Unpaved	No	3000	62 km
Healy River	HKB	394				0	77 km
Clearwater		884				0	78 km
Lignite		357				0	83 km
Totatlanika River		828				0	94 km
Eva Creek		859				0	96 km

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.
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