M 4.2 in United States on 21 Nov 2008 06:04 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.

Updated: this report is based on episode 1.

Earthquake Magnitude: 4.2M
Depth: Km
Lat/Lon: 59.7231 , -153.789
Event Date: 21 Nov 2008 06:04 UTC
20 Nov 2008 21:04 Local
Exposed Population:
about 500 people within 100km
Source: NEIC ak00079341
Inserted at: 21 Nov 2008 07:58 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
ak00079341 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
48405 0.5 21 Nov 2008 06:04 4.3M, 100km N/A Few people (in 100km) 00:19 NEIC
48406 0.5 21 Nov 2008 06:04 4.4M, 100km N/A Few people (in 100km) 00:24 NEIC
48410 0.5 21 Nov 2008 06:04 4.2M, 152.8km N/A Few people (in 100km) 01:54 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 Pile Bay Village, Pedro Bay, Williamsport, Iniskin, Iliamna, Port Alsworth, Newhalen, Nondalton, Fish Village, Chenik, and Kakhonak.

Radius Population
100 km <1000 people
75 km <1000 people
50 km <1000 people
20 km <1000 people
10 km <1000 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
Pile Bay Village Alaska United States Village - 3 km
Pedro Bay Alaska United States Village <1000 people 12 km
Williamsport Alaska United States Village - 17 km
Iniskin Alaska United States Village - 38 km
Iliamna Alaska United States Village <1000 people 52 km
Port Alsworth Alaska United States Village <1000 people 55 km
Newhalen Alaska United States Village <1000 people 55 km
Nondalton Alaska United States Village <1000 people 58 km
Fish Village Alaska United States Village - 58 km
Chenik Alaska United States Village - 62 km
Kijik Alaska United States Village - 63 km
Kakhonak Alaska United States Village <1000 people 63 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
Pedro Bay PDB 14 0 12 km
Camp Point 2 0 47 km
Port Alsworth PTA 85 0 54 km
Iliamna ILI 57 Civ. Unpaved Yes 5000 56 km
Nondalton NNL 94 0 57 km
Kokhanok 46 0 62 km
Pope Vanoy PVY unknown 0 75 km
Big Mountain BMX 202 0 88 km

Ports

Name LOCODE Country Distance
Snug Harbor Wake Island 84 km

More information

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