M 4 Off-shore on 21 Oct 2002 20:41 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: 4.0M
Depth: Km
Lat/Lon: 61.73 , -140.9
Event Date: 21 Oct 2002 20:41 UTC
Exposed Population:
Source: NEIC
Inserted at: 01 Jan 1900 00:00 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
512 0.5 21 Oct 2002 20:41 4M, 10km N/A No people affected (in 100km) -20:-41 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 Canada , Territory of Yukon Territory (population 28,927) . The nearest places are Canyon City, and Koidern.

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
Yukon Territory Canada 29000 people
Alaska United States 570000 people

Affected populated places

Name Region Province Country City class Population Distance
Canyon City Yukon Canada Village - 11 km
Koidern Yukon Canada Village - 35 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
Horsfeld 1006 0 34 km
Chisana CZN 1011 0 71 km
Beaver Creek YXQ 649 Civ. Unpaved No 3700 76 km
Glacier Creek KGZ 725 0 84 km

More information

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