M 3.1 Earthquake Strikes 89 km SW of Nikolski, Alaska

Source: USGS · Alaska

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A minor 3.1 magnitude earthquake was recorded southwest of Nikolski, Alaska, at a shallow depth of 18.4 km on March 1, 2026.

What this USGS earthquake report tells you, and what most readers miss

This notice was issued by USGS on February 25, 2026 and geographically references Alaska. Its severity classification of "low" 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 minor earthquake with a magnitude of 3.1 ml occurred on March 1, 2026, at 22:37:15 UTC. The seismic event was centered approximately 89 km southwest of Nikolski, Alaska. The event has been reviewed by seismologists and is classified as routine seismic activity.

Location Details

The earthquake was located at coordinates 52.402°N and 169.856°W. It originated at a depth of 18.4 km. This is considered a shallow earthquake, as it occurred less than 20 km below the surface. Shallow earthquakes are typically felt more distinctly than deeper events, though the magnitude of this specific occurrence remains low.

Impact Assessment

According to USGS data, there are currently no felt reports associated with this earthquake. There is no tsunami advisory, watch, or warning in effect. No alert level color has been assigned to this event, and there are no reports of damage or injuries.

What You Should Know

Earthquakes with magnitudes between 2.5 and 3.9 are classified as minor. While these events are often felt by people near the epicenter, they rarely cause damage to buildings or infrastructure. Residents in the Aleutian Islands region are encouraged to remain aware of routine seismic activity and follow standard safety protocols.

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 minor 3.1 magnitude earthquake was recorded southwest of Nikolski, Alaska, at a shallow depth of 18.4 km on March 1, 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 "low" severity. No immediate action required, but stay aware.
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.