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United States · Alaska

M2.1 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-09-01 11:23:49 UTC Local time: —
Magnitude
M2.1
Depth
9.1 km
Source
USGS

Alaska · Lake and Peninsula Borough

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About this earthquake

On September 1, 2026 at 11:23 UTC, a magnitude M2.1 earthquake occurred near Lake and Peninsula Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 9 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 136 earthquakes were recorded in the past 24 hours, the strongest reaching M4.6.

Depth profile

Depth profile Depth: 9.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9.1 km
Shallow
9.1 km
9.1 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

  • Ugashik-Peulik
    Distance: 24 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Ukinrek Maars
    Distance: 30 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
  • Alaska Peninsula Arc at 155.4°W
    Distance: 36 km ·Lava dome ·Elevation: 402 m ·United States
  • Martin
    Distance: 52 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 58 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 67 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States

Alaska

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 4,148 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

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

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