Overall Green Earthquake alert in United States on 31 Aug 2017 17:46 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 5.7 in United States on 31 Aug 2017 17:46 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:	5.7M
Depth:	66.5 Km
Lat/Lon:	58.4388 , -153.5603
Event Date:	31 Aug 2017 17:46 UTC 31 Aug 2017 09:46 Local
Exposed Population:	About 200 people within 100km
Source:	ALASKA EC ak16749110
Inserted at:	31 Aug 2017 17:53 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
ak16749110	Scaled population (vector)	0
	C1 earthquake	1
	C2 earthquake	0
	Country Vulnerability	0
	INFORM_normalised	1

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
1179036	31 Aug 2017 17:46	5.5M, 62km	N/A	Few people (in 100km)	00:03	ALASKA EC
1179037	31 Aug 2017 17:46	5.4M, 63.7km	N/A	Few people (in 100km)	00:05	ALASKA EC
1179038	31 Aug 2017 17:46	5.7M, 66.5km	N/A	Few people (in 100km)	00:07	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 ,of Alaska (population 2) . The alertlevel for this event is Green

Intensity	Population

Shakemaps Timeline

Alert	Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
	1	1	1179038	0/0	N/A	N/A	N/A	04 Sep 2017 08:54	3d 15:08	(new episode)

Affected Provinces

Intensity	Region Province	Country	Population
	Alaska	United States	<1000 people
	Alaska	United States	<1000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Port Wakefield	Alaska	United States	Village	-	53 km
Port William	Alaska	United States	Village	-	57 km
Port Bailey	Alaska	United States	Village	-	64 km
Afognak	Alaska	United States	Village	-	66 km
Kamishak	Alaska	United States	Village	-	86 km
Uyak	Alaska	United States	Village	-	93 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)	Distance
Onion Bay	ONN	unknown	48 km
Port Williams	KPR	unknown	57 km
Uganik	UGI	unknown	61 km
Danger Bay	DGB	unknown	62 km
Port Bailey	KPY	unknown	64 km
Seal Bay	SYB	unknown	69 km
Pleasant Harbor	PTR	unknown	71 km
West Point Village	KWP	unknown	74 km
Port Lions	ORI	16	75 km
Kitoi Bay	KKB	unknown	75 km
Ouzinkie		17	85 km

Ports

Name	Country	Distance
Port Vita	Wake Island	51 km
Bear Island	Wake Island	51 km
Port William	Wake Island	58 km
Dry Spruce Bay	Wake Island	65 km
Ouzinkie	Wake Island	85 km
Uyak	Wake Island	94 km

More information

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

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