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M0.4 Depth: 5.0 km

M0.4 Earthquake near Lake and Peninsula Borough, Alaska (United States)

UTC time: 2026-08-20 10:47:42 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near Lake and Peninsula Borough, Alaska (United States) on August 20, 2026 at 10:47 UTC. The hypocenter lay relatively close to the surface at around 5 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: over the past 24 hours, QuakeMap24 logged 232 earthquakes, the strongest at M3.9.

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Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 km — shallower than the regional average (15.4 km)
Regional average: 15.4 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

  • Martin
    Distance: 2 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Mageik
    Distance: 6 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Novarupta
    Distance: 16 km ·Caldera ·Elevation: 841 m ·Last eruption: 1912 ·United States
  • Trident
    Distance: 16 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Griggs
    Distance: 26 km ·Stratovolcano ·Elevation: 2'317 m ·Last eruption: -1790 ·United States
  • Katmai
    Distance: 26 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States

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

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

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