Overall Green Earthquake alert in United States from 19 Oct 2020 20:54 UTC to 20:54

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 7.5 in United States from 19 Oct 2020 20:54 UTC to 20:54

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:	7.5M
Depth:	40.12 Km
Lat/Lon:	54.662 , -159.6752
Event Date:	19 Oct 2020 20:54 UTC 19 Oct 2020 12:54 Local
Exposed Population:	Less then 100 people in MMI VII About 800 people within 100km
Source:	NEIC us6000c9hg
Inserted at:	19 Oct 2020 23:02 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)		Tsunami		GDACS score
NEIC	0		0.3		0.3
us6000c9hg	Scaled population (raster)	0	Max wave alert	0.39m
	C1 shakemap	-0.59	Max wave realtime	0.39m
	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	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1338485	0.2	19 Oct 2020 20:54	7.4M, 41km	N/A	Few people (in 100km)	0.3m (at 02:16)	00:06	NTWC
1338489	0.2	19 Oct 2020 20:54	7.4M, 41km	N/A	Few people (in 100km)	0.3m (at 02:16)	00:10	PTWC
1338491	0.3	19 Oct 2020 20:54	7.5M, 40.12km	8.16	less than 100 (in MMI>=VII)	0.4m (at 00:54)	02:07	NEIC
1338751	0.3	19 Oct 2020 20:54	7.6M, 33.25km	7.19	879 (in MMI>=VII)	0.3m (at 00:43)	21:06	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
	<1000 people
	1700 people

Shakemaps Timeline

Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	0	1338491	54.662/-159.675	7.5	40.1	7.367	19 Oct 2020 21:23	00:28	(new episode)
2	0	1338491	54.662/-159.675	7.5	40.1	7.367	19 Oct 2020 22:24	01:29	(upd of #1)
3	0	1338491	54.662/-159.675	7.5	40.1	8.165	19 Oct 2020 23:02	02:07	(upd of #2)
4	0.3	1338751	54.608/-159.655	7.6	33.2	7.092	20 Oct 2020 18:00	21:06	(new episode)
5	0.3	1338751	54.608/-159.655	7.6	33.2	7.066	20 Oct 2020 20:59	1d 00:04	(upd of #4)
6	0.3	1338751	54.617/-159.635	7.6	35.4	7.193	23 Oct 2020 16:53	3d 19:59	(upd of #5)
7	0.3	1338751	54.617/-159.635	7.6	35.4	7.193	23 Oct 2020 17:55	3d 21:00	(upd of #6)

Affected Provinces

Region Province	Country	Population
Alaska	United States	no people
Alaska	United States	<1000 people
Alaska	United States	<1000 people
Alaska	United States	2000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Unga	Alaska	United States	Village	-	79 km
Squaw Harbor	Alaska	United States	Village	-	86 km
Village	Alaska	United States	Village	-	91 km
Herendeen Bay	Alaska	United States	Village	-	139 km
Port Moller	Alaska	United States	Village	-	158 km
Belkofski	Alaska	United States	Village	-	159 km
Mitrofania	Alaska	United States	Village	-	159 km
Bear River	Alaska	United States	Village	-	174 km
Pauloff Harbor	Alaska	United States	Village	-	198 km
Sanak	Alaska	United States	Village	-	203 km
Ilnik	Alaska	United States	Village	-	215 km
Ikatan	Alaska	United States	Village	-	234 km
Morzhovoi	Alaska	United States	Village	-	235 km
Meshik	Alaska	United States	Village	-	258 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
Squaw Harbor		unknown				0	85 km
Sand Point	SDP	6	Civ.	Paved	Yes	4000	91 km
Perryville		7				0	143 km
Herendeen Bay		6				0	149 km
Ivanof Bay	KIB	unknown				0	138 km
Johnsons Landing		40				0	158 km
Port Moller	PML	unknown				0	160 km
King Cove	KVC	47				0	174 km
Nelson Lagoon	NLG	4				0	177 km
Chignik Lake		15				0	187 km
Pauloff Harbor	KPH	unknown				0	197 km
Chignik Lagoon	KCL	15				0	197 km
Chignik Bay	KBW	unknown				0	199 km
Chignik Fisheries	KCG	8				0	201 km
Cold Bay	CDB	30	Civ.	Paved	Yes	10400	205 km
Blinn Lake		15				0	208 km
False Pass	KFP	6				0	241 km
Port Heiden	PTH	29	Civ.	Unpaved	Yes	6200	264 km
Cape Sarichef	CSH	89	Civ.	Unpaved	No	3500	338 km
Ugashik Bay	UGB	40				0	349 km
Ugashik/new	UGS	8				0	349 km
Pilot Point	PIP	17				0	350 km
Big Creek	BIC	unknown				0	359 km
Lost Harbor Sea Port	LHB	unknown				0	387 km
Fort Jensen		73				0	393 km

Ports

Name	LOCODE	Country	Distance
Unga		Wake Island	78 km
Baralof Bay		Wake Island	84 km
Sand Point		Wake Island	94 km
Ivanof Bay		Wake Island	129 km
Perryville	USPYX	Wake Island	143 km
Port Moller		Wake Island	158 km
Belkofski		Wake Island	158 km
King Cove		Wake Island	175 km
Chignik		Wake Island	199 km
Cold Bay		Wake Island	203 km
Sanak Island		Wake Island	204 km
Fort Randal		Wake Island	215 km
Port Heiden		Wake Island	255 km
Chirikof Island		Wake Island	294 km
Unimak		Wake Island	314 km
Pilot Point		Wake Island	349 km
Ugashik		Wake Island	349 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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