Strong M 6.1 Earthquake Strikes Near Nikolski, Alaska

Earthquakes high USGS · · Alaska

A strong magnitude 6.1 earthquake occurred 86 km west-southwest of Nikolski, Alaska, on February 19, 2026, at an intermediate depth of 25.4 km.

What Happened

A strong earthquake with a magnitude of 6.1 (mww) was recorded on February 19, 2026, at 05:11:51 UTC. The seismic event was centered approximately 86 km west-southwest of Nikolski, Alaska, and originated at a depth of 25.4 kilometers.

Location Details

The epicenter was located at coordinates 52.6333°N and 170.0322°W. At a depth of 25.4 km, this is classified as an intermediate-depth earthquake (occurring between 20 and 70 km). The event took place in the seismically active Aleutian Islands region.

Impact Assessment

As of the latest data, there has been 1 felt report submitted to the USGS. The earthquake has been assigned a tsunami flag of 1, indicating that tsunami-related information or advisories may be associated with this event. No specific PAGER alert level color was provided in the source data.

What You Should Know

Earthquakes of this magnitude (M 6.0-6.9) are considered ‘strong’ and can be destructive in populated areas. Residents in the region should remain alert for the possibility of aftershocks. In the event of shaking, remember to ‘Drop, Cover, and Hold On.’ Due to the tsunami flag, coastal residents should monitor local emergency management for specific instructions or warnings.

Source

Information provided by the USGS Earthquake Hazards Program.

Source: USGS Official Notice