M 4.6 in United States on 26 Apr 2016 20:28 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: 74.6 Km
Lat/Lon: 62.7193 , -149.6966
Event Date: 26 Apr 2016 20:28 UTC
26 Apr 2016 12:28 Local
Exposed Population:
About 3977 people within 100km
Source: ALASKA EC
Inserted at: 26 Apr 2016 22:12 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
ALASKA EC 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
1126625 0 26 Apr 2016 20:28 4.7M, 93km N/A 4 thousand (in 100km) 00:04 NTWC    
1126627 n.a 26 Apr 2016 20:28 4.6M, 76.31km 3.7 4 thousand (in 100km) 00:22 NEIC
1126630 n.a 26 Apr 2016 20:28 4.8M, 75km 3.62 4 thousand (in 100km) 01:01 ALASKA EC
1126637 n.a 26 Apr 2016 20:28 4.6M, 74.6km 3.52 4 thousand (in 100km) 01:43 ALASKA EC
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 Chulitna, and Curry.

Radius Population
100 km 4000 people
75 km 3200 people
50 km 1200 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
Curry Alaska United States Village - 19 km
Chulitna Alaska United States Village - 24 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
Era Chulitna River 293 31 km
Talkeetna TKA 109 Civ. Paved Yes 3500 45 km

More information

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