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United States · Alaska

M2.7 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-09-18 21:11:39 UTC Local time: —
Magnitude
M2.7
Depth
27.9 km
Source
USGS

Alaska · Lake and Peninsula Borough

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About this earthquake

A magnitude M2.7 earthquake was recorded near Lake and Peninsula Borough, Alaska (United States) on September 18, 2026 at 21:11 UTC. With a focal depth of about 28 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 199 earthquakes, the strongest at M4.8.

Depth profile

Depth profile Depth: 27.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 27.9 km
Shallow
27.9 km
27.9 km — deeper 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

  • Black Peak
    Distance: 88 km ·Stratovolcano ·Elevation: 1'032 m ·Last eruption: -1900 ·United States
  • Aniakchak
    Distance: 89 km ·Caldera ·Elevation: 1'341 m ·Last eruption: 1931 ·United States
  • Yantarni
    Distance: 98 km ·Stratovolcano ·Elevation: 1'345 m ·Last eruption: -800 ·United States
  • Chiginagak
    Distance: 113 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·United States
  • Veniaminof
    Distance: 114 km ·Stratovolcano ·Elevation: 2'507 m ·Last eruption: 2021 ·United States
  • Kialagvik
    Distance: 126 km ·Stratovolcano ·Elevation: 1'677 m ·United States

Alaska

Context for this earthquake

18 Sep 2025 – 18 Sep 2026 · M ≥ 2.0 · 4,104 Catalogue entries

Of 4,103 other entries for this area and period, 923 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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Country statistics · United States

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