M 5.4 in Alaska Peninsula on 27 Jul 2020 19:34 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: 5.4M
Depth: 28 Km
Lat/Lon: 54.959 , -160.367
Event Date: 27 Jul 2020 19:34 UTC
27 Jul 2020 11:34 Local
Exposed Population: About 800 people within 100km
Source: NTWC at00qe57pr
Inserted at: 27 Jul 2020 19:40 UTC
INFORM Coping capacity of the alert score
2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NTWC 0 0
at00qe57pr Scaled population (vector) 3.21  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 0.65  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1323622 0 27 Jul 2020 19:34 5.4M, 28km N/A Few people (in 100km) 00:05 NTWC
1323625 0 27 Jul 2020 19:34 5.5M, 44.13km 4.12 N/A (in MMI>=VII) 00:17 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 Unga, Squaw Harbor, Sand Point, and Village.

Radius Population
100 km <1000 people
75 km <1000 people
50 km <1000 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
Unga Alaska United States Village - 27 km
Squaw Harbor Alaska United States Village - 34 km
Sand Point Alaska United States Village <1000 people 42 km
Village Alaska United States Village - 52 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
Squaw Harbor unknown 0 33 km
Sand Point SDP 6 Civ. Paved Yes 4000 41 km
Herendeen Bay 6 0 100 km

Ports

Name LOCODE Country Distance
Unga Wake Island 26 km
Baralof Bay Wake Island 32 km
Sand Point Wake Island 44 km

More information

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