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United States · Alaska

M4.1 Earthquake near Unorganized Borough, Alaska (United States)

UTC time: 2026-09-10 23:03:10 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

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About this earthquake

A magnitude M4.1 earthquake was recorded near Unorganized Borough, Alaska (United States) on September 10, 2026 at 23:03 UTC. With a focal depth of about 5 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 210 earthquakes, the strongest at M4.4.

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 km — shallower than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Imuruk Lake
    Distance: 158 km ·Volcanic field ·Elevation: 610 m ·Last eruption: 300 ·United States
  • St. Michael
    Distance: 301 km ·Volcanic field ·Elevation: 715 m ·United States
  • Ingakslugwat Hills
    Distance: 440 km ·Volcanic field ·Elevation: 190 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Brevig Mission AirportUnited States · KTS · PFKT
    18.0 kmStraight-line distance
  • Teller AirportUnited States · TLA · PATE
    21.1 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-10

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Alaska

Context for this earthquake

11 Sep 2025 – 10 Sep 2026 · M ≥ 3.0 · 659 Catalogue entries

Of 658 other entries for this area and period, 147 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · United States

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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