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United States · Alaska

M1.4 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-09-20 05:49:12 UTC Local time: —
Magnitude
M1.4
Depth
18.1 km
Source
USGS

Alaska · Lake and Peninsula Borough

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About this earthquake

A magnitude M1.4 earthquake was recorded near Lake and Peninsula Borough, Alaska (United States) on September 20, 2026 at 05:49 UTC. With a focal depth of about 18 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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: 202 earthquakes were recorded in the past 24 hours, the strongest reaching M5.3.

Depth profile

Depth profile Depth: 18.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18.1 km
Shallow
18.1 km
18.1 km — close to 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 14 km ·Lava dome ·Elevation: 402 m ·United States
  • Martin
    Distance: 40 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Ugashik-Peulik
    Distance: 45 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Mageik
    Distance: 45 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Ukinrek Maars
    Distance: 52 km ·Maar(s) ·Elevation: 91 m ·Last eruption: 1977 ·United States
  • Trident
    Distance: 53 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States

Alaska

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 2.0 · 4,108 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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