Overall Green Earthquake alert in United States on 19 Oct 2020 20:54 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 7.6 in United States on 19 Oct 2020 20:54 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:	7.6M
Depth:	33.25 Km
Lat/Lon:	54.6079 , -159.6552
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:	20 Oct 2020 18:00 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	0.3		0.2		0.3
us6000c9hg	Scaled population (raster)	2.11	Max wave alert	0.25m
	C1 shakemap	-0.59	Max wave realtime	0.25m
	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
	<1000 people
	2200 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	<1000 people
Alaska	United States	<1000 people
Alaska	United States	1900 people
Alaska	United States	<1000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Unga	Alaska	United States	Village	-	84 km
Squaw Harbor	Alaska	United States	Village	-	91 km
Village	Alaska	United States	Village	-	97 km
Herendeen Bay	Alaska	United States	Village	-	145 km
Belkofski	Alaska	United States	Village	-	162 km
Port Moller	Alaska	United States	Village	-	164 km
Mitrofania	Alaska	United States	Village	-	164 km
Bear River	Alaska	United States	Village	-	180 km
Pauloff Harbor	Alaska	United States	Village	-	198 km
Sanak	Alaska	United States	Village	-	204 km
Ilnik	Alaska	United States	Village	-	221 km
Ikatan	Alaska	United States	Village	-	236 km
Morzhovoi	Alaska	United States	Village	-	237 km
Meshik	Alaska	United States	Village	-	263 km
Kanatak	Alaska	United States	Village	-	398 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	90 km
Sand Point	SDP	6	Civ.	Paved	Yes	4000	96 km
Ivanof Bay	KIB	unknown				0	144 km
Perryville		7				0	148 km
Herendeen Bay		6				0	155 km
Johnsons Landing		40				0	164 km
Port Moller	PML	unknown				0	166 km
King Cove	KVC	47				0	177 km
Nelson Lagoon	NLG	4				0	183 km
Pauloff Harbor	KPH	unknown				0	197 km
Chignik Lagoon	KCL	15				0	202 km
Chignik Bay	KBW	unknown				0	204 km
Chignik Lake		15				0	192 km
Chignik Fisheries	KCG	8				0	206 km
Cold Bay	CDB	30	Civ.	Paved	Yes	10400	208 km
Blinn Lake		15				0	211 km
False Pass	KFP	6				0	243 km
Port Heiden	PTH	29	Civ.	Unpaved	Yes	6200	269 km
Cape Sarichef	CSH	89	Civ.	Unpaved	No	3500	340 km
Ugashik Bay	UGB	40				0	354 km
Ugashik/new	UGS	8				0	354 km
Pilot Point	PIP	17				0	355 km
Big Creek	BIC	unknown				0	364 km
Lost Harbor Sea Port	LHB	unknown				0	388 km
Fort Jensen		73				0	398 km
Sitkinak	SKJ	unknown				0	409 km

Ports

Name	LOCODE	Country	Distance
Unga		Wake Island	84 km
Baralof Bay		Wake Island	89 km
Sand Point		Wake Island	99 km
Ivanof Bay		Wake Island	134 km
Perryville	USPYX	Wake Island	148 km
Belkofski		Wake Island	161 km
Port Moller		Wake Island	164 km
King Cove		Wake Island	178 km
Chignik		Wake Island	204 km
Sanak Island		Wake Island	205 km
Cold Bay		Wake Island	206 km
Fort Randal		Wake Island	217 km
Port Heiden		Wake Island	260 km
Chirikof Island		Wake Island	296 km
Unimak		Wake Island	315 km
Pilot Point		Wake Island	354 km
Ugashik		Wake Island	354 km
Kanatak		Wake Island	399 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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