M 5.5 in United States from 08 Dec 2021 05:43 UTC to 05:43

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: 5.5M
Depth: 10 Km
Lat/Lon: 44.4355 , -129.6143
Event Date: 08 Dec 2021 05:43 UTC
07 Dec 2021 20:43 Local
Exposed Population: No people affected in 100km
Source: NEIC us6000gacx
Inserted at: 08 Dec 2021 06:02 UTC
INFORM Coping capacity of the alert score
1.1 (United States)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000gacx Scaled population (raster) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1414422 0 08 Dec 2021 05:43 5.5M, 10km N/A No people affected (in 100km) 00:19 NEIC
1414427 0 08 Dec 2021 05:43 5.5M, 10km N/A N/A (in MMI>=VII) 00:40 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 Oregon (population 2,958,009) .

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

Region Province Country Population
Oregon United States 3 million people
Washington United States 5.1 million people

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.