M 4.4 in United States on 19 Jun 2021 21:43 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: 4.4M
Depth: 12.7 Km
Lat/Lon: 63.9988 , -149.7795
Event Date: 19 Jun 2021 21:43 UTC
19 Jun 2021 13:43 Local
Exposed Population: About 2000 people within 100km
Source: ALASKA EC ak0217ti4bu9
Inserted at: 19 Jun 2021 21:54 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
ALASKA EC 0 0
ak0217ti4bu9 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.

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

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1381439 0 19 Jun 2021 21:43 4.5M, 8.4km N/A 3 thousand (in 100km) 00:05 ALASKA EC
1381442 0 19 Jun 2021 21:43 4.5M, 6.1km N/A 3 thousand (in 100km) 00:06 ALASKA EC
1381443 0 19 Jun 2021 21:43 4.4M, 12.7km 4.24 N/A (in MMI>=VII) 00:11 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. The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1381443 63.999/-149.78 4.6 12.7 4.063 19 Jun 2021 22:04 00:21 (new episode)
2 0 1381443 63.999/-149.78 4.4 12.7 4.227 19 Jun 2021 22:19 00:36 (upd of #1)
3 0 1381443 63.999/-149.78 4.4 12.7 4.238 19 Jun 2021 22:33 00:50 (upd of #2)

Affected Provinces

Intensity Region Province Country Population
Alaska United States no 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.