M 4.2 Light Earthquake Strikes Near Nikolski, Alaska

Earthquakes medium USGS · · Alaska

A magnitude 4.2 earthquake occurred 88 km southwest of Nikolski, Alaska, on February 24, 2026. The shallow quake was recorded at a depth of 10 kilometers.

What Happened

A light earthquake with a magnitude of 4.2 mb was recorded on February 24, 2026, at 21:11 UTC (11:11 AM local time). The event was centered approximately 88 km southwest of Nikolski, Alaska.

Location Details

The seismic activity was located at coordinates 52.4329°N, 169.8748°W. The earthquake occurred at a depth of 10 km. This is classified as a shallow earthquake; shallow events (less than 20 km deep) are typically felt more distinctly at the surface than deeper seismic events.

Impact Assessment

At this time, there have been no felt reports submitted to the USGS. There is no tsunami advisory, watch, or warning in effect (tsunami status: 0). No specific alert level color has been issued for this event, and the Modified Mercalli Intensity (MMI) was recorded at 2.941.

What You Should Know

Earthquakes of magnitude 4.0 to 4.9 are classified as light. While they can cause noticeable shaking and light damage, significant structural impacts are rare. Residents in the region should remain aware of the possibility of aftershocks. In the event of shaking, remember to drop, cover, and hold on.

Source

Data and event details provided by the USGS.

Source: USGS Official Notice