M 5.2 in United States from 21 Jul 2018 07:58 UTC to 07:58
EQ parameters

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: 5.2M
Depth: 54 Km
Lat/Lon: 54.475 , -160.798
Event Date: 21 Jul 2018 07:58 UTC
20 Jul 2018 20:58 Local
Exposed Population: About 900 people within 100km
Source: NTWC     at00pc7i5v
Inserted at: 21 Jul 2018 08:04 UTC
INFORM Coping capacity of the alert score: 2.2 (United States)


For more info on GDACS alert score click here.
  Earthquake GDACS score
NTWC     0 0
at00pc7i5v Scaled population (vector) 1.96  
  C1 earthquake 1  
  C2 earthquake 0  
  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
1220536 0 21 Jul 2018 07:58 5.2M, 54km N/A Few people 00:05 NTWC    
1220542 0 21 Jul 2018 07:58 5.4M, 9.9km N/A Few people 00:19 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 <1000 people
75 km <1000 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.


Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Squaw Harbor unknown 0 83 km
Sand Point SDP 6 Civ. Paved Yes 4000 93 km


Name LOCODE Country Distance
Unga Wake Island 78 km
Baralof Bay Wake Island 83 km
Sand Point Wake Island 95 km

More information

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