M 3.8 Minor Earthquake Strikes 111 km NE of Wiseman, Alaska

Source: USGS · Alaska

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A magnitude 3.8 earthquake occurred at a depth of 226.4 km near Wiseman, Alaska, on March 23, 2026. No shaking was reported due to the event's significant depth.

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

This notice was issued by USGS on April 5, 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 3.8 ml was recorded 111 km northeast of Wiseman, Alaska. The event occurred on March 23, 2026, at 00:50:29 UTC (March 22, 2026, at 4:50 PM local time). The seismic event was automatically recorded by the USGS.

Location Details

The earthquake was centered at coordinates 68.227°N, 148.603°W. It originated at a depth of 226.4 km. This is classified as a deep earthquake, as it occurred well below the 70 km threshold. Deep earthquakes are typically felt over a wider area but result in less intense surface shaking compared to shallow earthquakes of the same magnitude.

Impact Assessment

The USGS assigned the event a Maximum Modified Mercalli Intensity (MMI) of 1, indicating that shaking was likely not felt by the population. There have been no felt reports submitted by the public, and no tsunami advisories, watches, or warnings are in effect. No damage or injuries are expected from an event of this magnitude and depth.

What You Should Know

Earthquakes with magnitudes between 2.5 and 3.9 are considered minor. They are common in seismically active regions like Alaska and rarely cause damage. Residents are reminded that while this event was deep and likely not felt, it is always important to be prepared for seismic activity by securing heavy furniture and having an emergency plan in place.

Source

Data provided by the USGS Earthquake Hazards Program.

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 magnitude 3.8 earthquake occurred at a depth of 226.4 km near Wiseman, Alaska, on March 23, 2026. No shaking was reported due to the event's significant depth.
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.