M 5.6 in United States from 31 Oct 2021 16:37 UTC to 16:37

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: 5.6M
Depth: 21.08 Km
Lat/Lon: 54.9086 , -158.6725
Event Date: 31 Oct 2021 16:37 UTC
31 Oct 2021 05:37 Local
Exposed Population: No people affected in 100km
Source: NEIC us7000fqai
Inserted at: 31 Oct 2021 17:13 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)		 GDACS score
NEIC 0 0
us7000fqai Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 0.65  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1406002 0 31 Oct 2021 16:37 5.2M, 42km 3.87 N/A (in MMI>=VII) 00:07 NTWC
1406007 0 31 Oct 2021 16:37 5.6M, 31.83km 4.46 N/A (in MMI>=VII) 00:16 NEIC
1406008 0 31 Oct 2021 16:37 5.6M, 21.08km 4.1 N/A (in MMI>=VII) 00:35 NEIC
1406990 0 31 Oct 2021 16:37 5.6M, 25km 4.22 N/A (in MMI>=VII) 7d 14:26 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 , State of Alaska (population 572,432) .

Radius Population
100 km no people
75 km no people
50 km no 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

Critical infrastructure

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

More information

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