M 4.8 in United States on 17 Apr 2005 21:33 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: 4.8M
Depth: 25 Km
Lat/Lon: 60.75 , -149.28
Event Date: 17 Apr 2005 21:33 UTC
17 Apr 2005 13:33 Local
Exposed Population:
310000 people within 100km
Source: NEIC
Inserted at: 18 Apr 2005 00:30 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 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
11111 0.5 17 Apr 2005 21:33 4.8M, 25km N/A 310 thousand (in 100km) 02:57 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) . The nearest places are Anchorage, and Silvertip.

Radius Population
100 km 370000 people
75 km 290000 people
50 km 28000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Country Region Province Population
United States Alaska 570000 people

Affected populated places

Name Region Province Country City class Population Distance
Silvertip Alaska United States Village - 3 km
Anchorage Alaska United States Major city 260000 people 58 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
Summit Lake 396 16 km
Hope 61 23 km
Girdwood AQY 46 25 km

Ports

Name LOCODE Country Distance
Whittier USWQF Wake Island 36 km
Anchorage USANC Wake Island 60 km

More information

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