M 5.2 Moderate Earthquake Strikes Near Attu Station, Alaska
A moderate 5.2 magnitude earthquake occurred 235 km east-southeast of Attu Station, Alaska, at a shallow depth of 10 kilometers on March 23, 2026.
What Happened
A moderate earthquake with a magnitude of 5.2 mb was recorded on March 23, 2026, at 10:44 UTC. The seismic event occurred at a shallow depth of 10 kilometers.
Location Details
The epicenter was located at coordinates 52.2167° N, 176.4919° E, approximately 235 km east-southeast of Attu Station, Alaska. A depth of 10 km is considered shallow; shallow earthquakes (less than 20 km) are typically felt more strongly at the surface than deeper seismic events.
Impact Assessment
The earthquake registered a maximum Modified Mercalli Intensity (MMI) of 3.958. According to the source data, a tsunami message was generated (tsunami: 1) in relation to this event. There are currently no felt reports from the public, and no reports of damage or injuries have been received from this remote region.
What You Should Know
Moderate earthquakes of this magnitude can cause damage to poorly constructed buildings but often result in little to no damage in well-built structures. Residents in the Aleutian Islands should remain aware of the possibility of aftershocks and follow any official instructions regarding tsunami advisories.
Source
Event data and attribution provided by the USGS.
Source: USGS Official Notice