M 6 in United States from 21 Dec 2023 14:55 UTC to 14:55

Hazard models

Rapid Impact
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: 6.0M
Depth: 1 Km
Lat/Lon: 51.202 , -175.443
Event Date: 21 Dec 2023 14:55 UTC
21 Dec 2023 02:55 Local
Exposed Population: Few people affected in MMI&>=III
Source: NTWC at00s60ut7
Inserted at: 21 Dec 2023 15:03 UTC
INFORM Coping capacity of the alert score
1.1 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NTWC 0 0
at00s60ut7 Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1543527 0 21 Dec 2023 14:55 6M, 1km 3.59 N/A (in MMI>=VII) 00:07 NTWC
1543529 0 21 Dec 2023 14:55 5.9M, 19.7km 3.63 Few people (in 100km) 00:14 ALASKA EC
1543530 0 21 Dec 2023 14:55 6.3M, 33.2km 4.06 N/A (in MMI>=VII) 0m (at 00:00) 00:16 NEIC
1543535 0 21 Dec 2023 14:55 6.1M, 30.1km 3.83 N/A (in MMI>=VII) 00:55 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 off shore.

Radius Population
100 km no 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

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

More information

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