M 5.2 Moderate Earthquake Strikes Near Attu Station, Alaska

Source: USGS · Alaska

According to the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, the CDC PLACES population-level health analysis, and the CMS Hospital Compare quality data, Areazine publishes editorial articles drawing on more than 19,000 U.S. city profiles. 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 March 4, 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 regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly USGS detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized USGS earthquake report is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (earthquake, seismic, usgs, Alaska) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

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 ↗

All Earthquakes →

Frequently Asked Questions

Common questions about this USGS earthquake report.

What is this USGS earthquake report about?
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.
Which agency issued this alert?
This alert was issued by USGS. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "medium" severity. Stay informed and follow agency guidance.
What area is affected?
This alert affects Alaska. Check with USGS for the most current geographic scope.
Where can I find more Earthquakes updates?
Browse the full Earthquakes feed on Areazine at areazine.com/earthquakes/ for the latest updates from USGS and other agencies.