Overall Green Earthquake alert in United States on 27 Feb 2021 18:59 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 5.3 in United States on 27 Feb 2021 18:59 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:	5.3M
Depth:	40.9 Km
Lat/Lon:	61.3334 , -150.0137
Event Date:	27 Feb 2021 18:59 UTC 27 Feb 2021 09:59 Local
Exposed Population:	410000 people within 100km
Source:	ALASKA EC ak0212o88mof
Inserted at:	27 Feb 2021 19:12 UTC
INFORM Coping capacity of the alert score	2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
ALASKA EC	0.1		0.1
ak0212o88mof	Scaled population (raster)	6.33
	C1 earthquake	1
	C2 earthquake	0
	Country Vulnerability	0
	INFORM_normalised	0.65

Maximum expected impact using different data sources.

Episode Timeline

ID	Score	Date	Mag, Depth	MMI*	Population**	Delay (hh:mm)	Source
1360968	0.2	27 Feb 2021 18:59	5.3M, 38.1km	N/A	410 thousand (in 100km)	00:03	ALASKA EC
1360969	0	27 Feb 2021 18:59	5.3M, 31.3km	4.01	N/A (in MMI>=VII)	00:05	ALASKA EC
1360973	0.1	27 Feb 2021 18:59	5.3M, 40.9km	4.01	N/A (in MMI>=VII)	00:12	ALASKA EC
1360975	0	27 Feb 2021 18:59	5.3M, 40.9km	5.03	N/A (in MMI>=VII)	00:13	ALASKA EC
1360976	0	27 Feb 2021 18:59	5.3M, 43.2km	4.96	N/A (in MMI>=VII)	00:15	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 Bay City, Tuomi, John Fitzgerald Kennedy City, Wilson Village, Anchorage, Spenard, Artesian Village, Green Acres, Campbell, Nunaka Valley, and Tyonek.

Radius	Population
100 km	410000 people
75 km	410000 people
50 km	370000 people
20 km	170000 people
10 km	<1000 people
5 km	<1000 people
2 km	<1000 people

Affected Provinces

Region Province	Country	Population
Alaska	United States	570000 people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Bay City	Alaska	United States	Village	-	7 km
Tuomi	Alaska	United States	Village	-	12 km
John Fitzgerald Kennedy City	Alaska	United States	Village	-	12 km
Wilson Village	Alaska	United States	Village	-	15 km
Anchorage	Alaska	United States	Major city	260000 people	16 km
Spenard	Alaska	United States	Village	-	17 km
Artesian Village	Alaska	United States	Village	-	17 km
Green Acres	Alaska	United States	Village	-	19 km
Campbell	Alaska	United States	Village	-	19 km
Nunaka Valley	Alaska	United States	Village	-	19 km
Homesite Park	Alaska	United States	Village	-	19 km
Fort Richardson	Alaska	United States	Village	-	20 km
Knik	Alaska	United States	Village	<1000 people	20 km
Big Lake	Alaska	United States	Village	2600 people	21 km
Eagle River	Alaska	United States	Village	-	24 km
Knik Heights	Alaska	United States	Village	-	28 km
Birchwood	Alaska	United States	Village	-	29 km
Chugiak	Alaska	United States	Village	-	29 km
Potter Hill	Alaska	United States	Village	-	30 km
Cottonwood	Alaska	United States	Village	-	31 km
Peters Creek	Alaska	United States	Village	-	32 km
Alexander	Alaska	United States	Village	-	33 km
Pittman	Alaska	United States	Village	-	35 km
Houston	Alaska	United States	Village	1200 people	35 km
Susitna	Alaska	United States	Village	<1000 people	35 km
Eklutna	Alaska	United States	Village	-	37 km
Meadow Lakes	Alaska	United States	Village	4800 people	39 km
Wasilla	Alaska	United States	Village	5500 people	41 km
Willow	Alaska	United States	Village	1700 people	42 km
Rainbow	Alaska	United States	Village	-	42 km
Tanaina	Alaska	United States	Village	5000 people	45 km
Matanuska	Alaska	United States	Village	-	48 km
Gateway	Alaska	United States	Village	3000 people	49 km
Hope	Alaska	United States	Village	<1000 people	51 km
Palmer	Alaska	United States	Village	4500 people	56 km
Butte	Alaska	United States	Village	2600 people	56 km
Beluga	Alaska	United States	Village	<1000 people	57 km
Kashwitna	Alaska	United States	Village	-	58 km
Sunrise	Alaska	United States	Village	<1000 people	59 km
Lucky Shot Landing	Alaska	United States	Village	-	59 km
Girdwood	Alaska	United States	Village	-	62 km
Alyeska	Alaska	United States	Village	-	64 km
Moose Creek	Alaska	United States	Village	-	65 km
Ladd	Alaska	United States	Village	-	65 km
Lazy Mountain	Alaska	United States	Village	1200 people	66 km
Tyonek	Alaska	United States	Village	<1000 people	69 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
Point Mackenzie		22				0	9 km
Sleepers Strip		38				0	9 km
Goose Bay		24				0	11 km
Little Susitna		21				0	14 km
Elmendorf AFB	EDF	65	Mil.	Paved	Yes	10000	15 km
Merrill Field	MRI	42	Civ.	Paved	Yes	4000	16 km
Anchorage International	ANC	44	Civ.	Paved	Yes	11500	18 km
Fire Island		17				0	20 km
Bryant Ahp	FRN	115				0	21 km
Campbell Airstrip		87				0	23 km
Big Lake	BGQ	46				0	25 km
Flying Crown		14				0	27 km
Settlers Bay Airstrip		55				0	28 km
Twin Lake		61				0	29 km
Lincoln Village Airpark		76				0	29 km
Birchwood		29	Civ.	Paved	No	4000	29 km
Rabbit Creek		11				0	30 km
Hilltop		114				0	32 km
Hunt Strip		61				0	34 km
Satterburgs		107				0	36 km
Visnaw Lake		91				0	37 km
Jack Fish Landing		46				0	38 km
Hardee Field		201				0	38 km
Wicker	WWA	96	Civ.	Unpaved	No	3700	39 km
Gannon's Landing		116				0	39 km
Nancy Lake		66				0	39 km
Honeybee Lake Aero Park		61				0	42 km
Wasilla Lake		101				0	42 km
Deshka Landing		34				0	45 km
Shirley Lake		56				0	45 km
Memory Lake		128				0	46 km
Gattis Strip		98				0	46 km
Colberg		38				0	47 km
Willow	WOW	67	Civ.	Unpaved	No	4400	47 km
Four Corners		91				0	49 km
B & B Boys Ranch		91				0	49 km
Boisselle's Strip		122				0	49 km
Cardwell Strip		130				0	51 km
Laub		30				0	51 km
Thomas Strip		58				0	51 km
Jewell		34				0	52 km
Hope		61				0	52 km
Sky Ranch At Pioneer Peak		37				0	53 km
Bold		274				0	55 km
Kashwitna Lake		57				0	56 km
Palmer Municipal	PAQ	71	Civ.	Paved	Yes	6000	57 km
Butte Municipal		20				0	57 km
Wasilla Creek Airpark		84				0	58 km
Beluga	BVU	40	Priv.	Unpaved	Yes	5000	58 km
Rustic Wilderness		58				0	61 km
Downwind Landing		67				0	61 km
Abi		229				0	61 km
Girdwood	AQY	46				0	63 km
Tyonek	TYE	34				0	67 km
South Gasline		116				0	71 km
Jonesville Mine		265				0	73 km
Secluded Lake		91				0	77 km
Summit Lake		396				0	82 km
Parker Lake		76				0	82 km
Montana Creek		76				0	82 km
Nikolai Creek		9				0	85 km
West Papoose Lake Airpark		76				0	89 km
Whittier		9				0	93 km
Skwentna	SKW	45	Civ.	Unpaved	No	3400	94 km
Graham		308				0	96 km
Quartz Creek	JLA	137				0	96 km
Offshore Ststems-Kenai		46				0	96 km
Skilak Blm Helistop		84				0	98 km
Rotor Air		61				0	99 km
Carty's Airstrip		46				0	99 km
Dutch Landing Strip		91				0	100 km

Ports

Name	LOCODE	Country	Distance
Anchorage	USANC	Wake Island	15 km
Palmer		Wake Island	54 km
Tyonek	USTYE	Wake Island	68 km
Whittier	USWQF	Wake Island	96 km

More information

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

Disclaimer
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