M 4.6 in United States on 21 Nov 2014 18:53 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This is a preliminary assessment. The final GDACS Alert Level has been/will be published using more detailed information.

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 4.6M
Depth: 95.14 Km
Lat/Lon: 51.8 , 178.63
Event Date: 21 Nov 2014 18:53 UTC
21 Nov 2014 08:53 Local
Exposed Population:
No people within 100km
Source: NEIC
Inserted at: 21 Nov 2014 20:39 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC n.a n.a
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
1065304 n.a 21 Nov 2014 18:53 4.6M, 95.14km N/A No people affected (in 100km) 01:45 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 no 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

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
Amchitka Island AHT 69 64 km

Ports

Name LOCODE Country Distance
Amchitka Island Wake Island 42 km
Constantine Harbour Wake Island 65 km

More information

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