M 6.6 in United States on 11 Jan 2022 12:39 UTC

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: 6.6M
Depth: 11.23 Km
Event Date: 11 Jan 2022 12:39 UTC
11 Jan 2022 01:39 Local
Exposed Population: Less then 100 people in MMI V
Few people affected in 100km
Source: NEIC us7000gawk
Inserted at: 11 Jan 2022 13:29 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 0.1 0.1
us7000gawk Scaled population (raster) 0 Max wave alert 0.17m  
  C1 shakemap -0.59 Max wave realtime 0.17m  
  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
1420620 0 11 Jan 2022 12:39 6.5M, 37km 3.36 Few people (in 100km) 0m (at 00:00) 00:18 NTWC
1420622 0 11 Jan 2022 12:39 6.5M, 37km 3.36 less than 100 (in MMI>=VII) 0m (at 00:00) 00:20 PTWC
1420624 0.1 11 Jan 2022 12:39 6.7M, 11.96km 3.36 less than 100 (in MMI>=VII) 0.2m (at 00:17) 00:23 NEIC
1420627 0 11 Jan 2022 12:39 6.5M, 15.58km 5.01 less than 100 (in MMI>=VII) 0.1m (at 00:16) 00:27 NEIC
1420635 0.1 11 Jan 2022 12:39 6.6M, 11.23km 5.07 less than 100 (in MMI>=VII) 0.2m (at 00:16) 00:49 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 Nikolski, United States. This height is estimated for 11-Jan-2022 12:55:87.

Alert Date (UTC) Name Country Wave height (m)
11-Jan-2022 12:55:87 Nikolski United States  0.2
11-Jan-2022 13:08:76 Umnak United States  0.1

See full locations list (RSS)


Initial conditions

Title: ""60 km SE of Nikolski""

Fault parameters

  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 247 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 11 km

Calculation parameters

  • Calculation space (lon/lat): -169.655, 51.105, -166.655, 54.105
  • Instead of Step -> use Cell size:.25 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.