M 6.1 in United States on 23 Feb 2026 05:11 UTC

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: 6.1M
Depth: 14 Km
Lat/Lon: 52.3572 , -169.8574
Event Date: 23 Feb 2026 05:11 UTC
22 Feb 2026 18:11 Local
Exposed Population: Few people affected in MMI IV
Source: NEIC us6000sayv
Inserted at: 23 Feb 2026 05:35 UTC
INFORM Coping capacity of the alert score: 1.1 (United States)

GDACS Score

For more info on GDACS score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000sayv Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
  Score no CC 0  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDLevelScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1689295 0 23 Feb 2026 05:11 6.3M, 1km 3.92 N/A (in MMI>=VII) 0m (at 00:00) 00:05 NTWC
1689297 0 23 Feb 2026 05:11 6.1M, 19.9km 3.86 Few people (in 100km) 00:11 ALASKA EC
1689298 0 23 Feb 2026 05:11 6.1M, 25.4km 4.09 N/A (in MMI>=VII) 00:10 NEIC
1689301 0 23 Feb 2026 05:11 6.1M, 14km 4.02 N/A (in MMI>=VII) 00:23 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 ,of Alaska (population 572,432) . The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

LevelShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1689295 -169.958/52.45 6 16.5 4.332 23 Feb 2026 05:19 00:07 (new episode)
2 0 1689298 -169.958/52.45 6 16.5 4.332 23 Feb 2026 05:22 00:10 (new episode)
3 0 1689298 -169.966/52.465 6.1 19.9 4.343 23 Feb 2026 05:23 00:11 (upd of #2)
4 0 1689298 -170.032/52.633 6.1 25.4 5.594 23 Feb 2026 05:28 00:16 (upd of #3)
5 0 1689301 -170.032/52.633 6.1 25.4 5.609 23 Feb 2026 05:36 00:24 (new episode)
6 0 1689301 -169.857/52.357 6.1 14 4.718 23 Feb 2026 07:29 02:17 (upd of #5)
7 0 1689301 -169.857/52.357 6.1 14 4.718 24 Feb 2026 14:01 1d 08:49 (upd of #6)

Affected Provinces

Intensity Region Province Country Population
Alaska United States no people
Alaska United States <1000 people
Alaska United States no people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Kashega Alaska United States Village - 220 km

see full list


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Nikolski AS IKO 22 0 94 km
Driftwood Bay DFB unknown 0 269 km

More information

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