M 5.2 Moderate Earthquake Strikes Near Attu Station, Alaska
Areazine synthesizes this USGS earthquake report directly from USGS's official public data feed. See our methodology for full source attribution and refresh cadence.
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 this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 6, 2026 and geographically references Alaska. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Earthquakes - determines the monitoring protocol behind it, which shapes what follow-up action (checking for structural damage, watching for aftershocks, reviewing local building codes) is relevant and which agency holds authority over the assessment.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are earthquake, seismic, usgs, Alaska.
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.
Original source: USGS Official Notice ↗
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