M 3.1 Earthquake Recorded 193 km South of Nikolski, Alaska
A minor 3.1 magnitude earthquake occurred south of Nikolski, Alaska, on February 21, 2026. The event was recorded at an intermediate depth of 20 kilometers.
What Happened
A minor earthquake with a magnitude of 3.1 ml was recorded 193 km south of Nikolski, Alaska. The seismic event occurred on February 21, 2026, at 20:55:52 UTC. The earthquake originated at a depth of 20 km.
Location Details
The earthquake was centered at coordinates 51.223°N and 169.3°W, approximately 193 kilometers south of Nikolski. The recorded depth of 20 km is classified as an intermediate-depth earthquake (20-70 km), which typically results in less intense surface shaking compared to shallower events.
Impact Assessment
According to USGS data, there are no felt reports associated with this event. No tsunami advisory, watch, or warning has been issued. No alert level color has been assigned, as the event represents routine seismic activity for the Aleutian Islands region.
What You Should Know
Earthquakes with magnitudes between 2.5 and 3.9 are classified as minor. While these events are frequently captured by seismic networks, they are rarely felt by the public and typically do not cause any structural damage. Residents in seismically active regions like Alaska are encouraged to maintain standard earthquake preparedness.
Source
Information and data provided by the USGS Earthquake Hazards Program.
Source: USGS Official Notice