M 4.2 in United States on 14 Jul 2013 23:29 UTC
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: 4.2M
Depth: 20.6 Km
Lat/Lon: 53.4175 , -168.0266
Event Date: 14 Jul 2013 23:29 UTC
14 Jul 2013 15:29 Local
Exposed Population:
Few people within 100km
Source: USGS usB000IE7K
Inserted at: 15 Jul 2013 01:47 UTC


For more info on GDACS alert score click here.
  Earthquake GDACS score
USGS 0 0
usB000IE7K Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1000639 0 14 Jul 2013 23:29 4.2M, 20.6km N/A Few people (in 100km) 02:17 USGS
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) . The nearest places are and Egorkovskoi.

Radius Population
100 km <1000 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

Affected populated places

Name Region Province Country City class Population Distance
Egorkovskoi Alaska United States Village - 15 km

see full list

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
Umnak Island UMB unknown 10 km
Chernofski Harbor KCN unknown 32 km


Name LOCODE Country Distance
Makushin Wake Island 79 km
Cannery Bay Wake Island 91 km

More information

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