M 4.9 in United States from 20 Apr 2007 17:20 UTC to 17:20

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: 4.9M
Depth: Km
Lat/Lon: 52.64 , -176.05
Event Date: 20 Apr 2007 17:20 UTC
20 Apr 2007 05:20 Local
Exposed Population:
about 300 people within 100km
Source: EMSC
Inserted at: 21 Apr 2007 08:33 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
EMSC 0.5 0.5
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
26600 0.5 20 Apr 2007 17:20 5.2M, 177km N/A Few people (in 100km) 02:17 NEIC
26616 0.5 20 Apr 2007 17:20 4.9M, 180km N/A Few people (in 100km) 15:13 EMSC
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 Adak Station.

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
Adak Station Alaska United States Village 9300 people 65 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
Adak Naf ADK 5 Mil. Paved Yes 7700 63 km

Ports

Name LOCODE Country Distance
Adak Wake Island 64 km

More information

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