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United States · Alaska

M1.5 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-09-28 21:10:36 UTC Local time: —
Magnitude
M1.5
Depth
119.6 km
Source
USGS

Alaska · Lake and Peninsula Borough

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About this earthquake

A magnitude M1.5 earthquake was recorded near Lake and Peninsula Borough, Alaska (United States) on September 28, 2026 at 21:10 UTC. The earthquake originated at an intermediate depth of about 120 km. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 175 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Depth profile

Depth profile Depth: 119.6 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 119.6 km
Intermediate
119.6 km
119.6 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

  • Ugashik-Peulik
    Distance: 18 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Ukinrek Maars
    Distance: 20 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
  • Alaska Peninsula Arc at 155.4°W
    Distance: 47 km ·Lava dome ·Elevation: 402 m ·United States
  • Martin
    Distance: 59 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 65 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 74 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States

Alaska

Context for this earthquake

28 Sep 2025 – 28 Sep 2026 · M ≥ 2.0 · 4,153 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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Country statistics · United States

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