Minor M 3.3 Earthquake Recorded 74 km NNW of Karluk, Alaska
A minor 3.3 magnitude earthquake occurred near Karluk, Alaska, at a depth of 95.9 km on March 21, 2026. No tsunami warnings were issued.
What Happened
A minor earthquake with a magnitude of 3.3 ml occurred on March 21, 2026, at 11:26 UTC. The seismic event was recorded at a depth of 95.9 km.
Location Details
The earthquake’s epicenter was situated at coordinates 58.222°N, 154.733°W, approximately 74 km north-northwest of Karluk, Alaska. With a depth of 95.9 km, this is classified as a deep earthquake (greater than 70 km), which typically results in less intense shaking at the surface compared to shallow 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 for this event. No damage or injuries have been reported, consistent with the magnitude and depth of the tremor.
What You Should Know
Earthquakes in the M 2.5-3.9 range are categorized as minor. While they are routine geological events in Alaska, they serve as a reminder of the region’s active seismic nature. Aftershocks are possible following any earthquake, though they are generally smaller than the initial event.
Source
Event data and details provided by the USGS.
Source: USGS Official Notice