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M1.5 Depth: 137.5 km

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

UTC time: 2026-03-20 18:39:42 UTC Local time: —

About this earthquake

A magnitude M1.5 earthquake was recorded near Lake and Peninsula Borough, Alaska (United States) on March 20, 2026 at 18:39 UTC. At around 138 km, the focal depth places this among intermediate-depth events. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 179 earthquakes were recorded in the past 24 hours, the strongest reaching M3.0.

Map

Depth profile

Depth profile Depth: 137.5 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 137.5 km
Intermediate
137.5 km
137.5 km — deeper than the regional average (15.8 km)
Regional average: 15.8 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

  • Martin
    Distance: 38 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 43 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 47 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Trident
    Distance: 51 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Griggs
    Distance: 51 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Alaska Peninsula Arc at 155.4°W
    Distance: 58 km ·Lava dome ·Elevation: 402 m ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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