M 4.5 in United States on 30 Dec 2020 03:22 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: 4.5M
Depth: 26.22 Km
Lat/Lon: 54.6794 , -159.7049
Event Date: 30 Dec 2020 03:22 UTC
29 Dec 2020 18:22 Local
Exposed Population:
About 800 people within 100km
Source: NEIC us6000d46z
Inserted at: 30 Dec 2020 03:42 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
NEIC 0 0
us6000d46z Scaled population (vector) 1.91  
  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
1350453 0 30 Dec 2020 03:22 4.5M, 26.22km N/A Few people (in 100km) 00:20 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 <1000 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
Squaw Harbor unknown 0 82 km
Sand Point SDP 6 Civ. Paved Yes 4000 88 km

Ports

Name LOCODE Country Distance
Unga Wake Island 76 km
Baralof Bay Wake Island 81 km
Sand Point Wake Island 91 km

More information

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