M 6.8 in United States on 11 Jan 2022 11:35 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: 6.8M
Depth: 22.32 Km
Event Date: 11 Jan 2022 11:35 UTC
11 Jan 2022 00:35 Local
Exposed Population: Less then 100 people in MMI VI
Few people affected in 100km
Source: NEIC us7000gavu
Inserted at: 11 Jan 2022 12:00 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)		 Tsunami GDACS score
NEIC 0 0.2 0.2
us7000gavu Scaled population (raster) 0 Max wave scenario 0.04m  
  C1 shakemap -0.59 Max wave realtime 0.23m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.65      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1420595 0 11 Jan 2022 11:35 6.7M, 33km N/A N/A (in MMI>=VII) 0.1m (at 00:31) 00:11 NTWC
1420597 0 11 Jan 2022 11:35 6.7M, 33km 3.91 N/A (in MMI>=VII) 0.1m (at 00:31) 00:14 PTWC
1420598 0 11 Jan 2022 11:35 5.5M, 1km 3.91 N/A (in MMI>=VII) 00:14 ALASKA EC
1420600 0.2 11 Jan 2022 11:35 6.8M, 22.32km 6.13 N/A (in MMI>=VII) 0.2m (at 00:36) 00:24 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.

Tsunami affected locations

The maximum Wave height is  0.2m in Umnak, United States. This height is estimated for 11-Jan-2022 12:11:16.

Alert Date (UTC) Name Country Wave height (m)
11-Jan-2022 12:11:16 Umnak United States  0.2
11-Jan-2022 11:53:17 Nikolski United States  0.1
11-Jan-2022 13:26:14 Kashega United States  0.1

See full locations list (RSS)


Initial conditions

Title: ""71 km ESE of Nikolski""

Fault parameters

  • Latitude: 52.656
  • Longitude: -167.917
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 247 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 22 km

Calculation parameters

  • Calculation space (lon/lat): -170.917, 49.656, -164.917, 55.656
  • Instead of Step -> use Cell size:.5 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

  • Montecarlo:
    Tsunami Montecarlo simulation performed to this case, click here

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