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United States · Alaska

M3.1 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-09-05 18:01:58 UTC Local time: —
Magnitude
M3.1
Depth
145.9 km
Source
USGS

Alaska · Lake and Peninsula Borough

Country overview

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About this earthquake

A magnitude M3.1 earthquake was recorded near Lake and Peninsula Borough, Alaska (United States) on September 5, 2026 at 18:01 UTC. At around 146 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by USGS. United States: 182 earthquakes were recorded in the past 24 hours, the strongest reaching M3.8.

Depth profile

Depth profile Depth: 145.9 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 145.9 km
Intermediate
145.9 km
145.9 km — deeper than the regional average (15.2 km)
Regional average: 15.2 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Aniakchak
    Distance: 29 km ·Caldera ·Elevation: 1'341 m ·Last eruption: 1931 ·United States
  • Yantarni
    Distance: 54 km ·Stratovolcano ·Elevation: 1'345 m ·Last eruption: -800 ·United States
  • Chiginagak
    Distance: 64 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·United States
  • Black Peak
    Distance: 79 km ·Stratovolcano ·Elevation: 1'032 m ·Last eruption: -1900 ·United States
  • Kialagvik
    Distance: 79 km ·Stratovolcano ·Elevation: 1'677 m ·United States
  • Ukinrek Maars
    Distance: 120 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Port Heiden AirportUnited States · PTH · PAPH
    40.0 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-08

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

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 653 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

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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