M 6.1 in Alaska Peninsula on 28 Jul 2020 08:03 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: 6.1M
Depth: 41.26 Km
Lat/Lon: 54.8674 , -161.1436
Event Date: 28 Jul 2020 08:03 UTC
27 Jul 2020 21:03 Local
Exposed Population: Less then 100 people in MMI V
About 2000 people within 100km
Source: NEIC us6000b56k
Inserted at: 28 Jul 2020 08:22 UTC
INFORM Coping capacity of the alert score
2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000b56k Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  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
1323695 0 28 Jul 2020 08:03 5.9M, 60km N/A 2 thousand (in 100km) 00:06 NTWC
1323699 0 28 Jul 2020 08:03 6.1M, 41.26km 4.68 N/A (in MMI>=VII) 00:18 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, Belkofski, and Sand Point.

Radius Population
100 km 2300 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 - 54 km
Squaw Harbor Alaska United States Village - 57 km
Belkofski Alaska United States Village - 62 km
Sand Point Alaska United States Village <1000 people 67 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 55 km
Sand Point SDP 6 Civ. Paved Yes 4000 64 km
King Cove KVC 47 0 77 km

Ports

Name LOCODE Country Distance
Unga Wake Island 54 km
Baralof Bay Wake Island 57 km
Belkofski Wake Island 62 km
Sand Point Wake Island 65 km
King Cove Wake Island 78 km

More information

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