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M3.1 Depth: 28.1 km

M3.1 Earthquake near Kodiak Island Borough, Alaska (United States)

UTC time: 2026-08-18 07:48:02 UTC Local time: —

About this earthquake

On August 18, 2026 at 07:48 UTC, a magnitude M3.1 earthquake occurred near Kodiak Island Borough, Alaska (United States). The hypocenter lay relatively close to the surface at around 28 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 192 earthquakes, the strongest at M4.8.

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Depth profile

Depth profile Depth: 28.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 28.1 km
Shallow
28.1 km
28.1 km — deeper 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

  • Alaska Peninsula Arc at 155.4°W
    Distance: 161 km ·Lava dome ·Elevation: 402 m ·United States
  • Kialagvik
    Distance: 177 km ·Stratovolcano ·Elevation: 1'677 m ·United States
  • Ugashik-Peulik
    Distance: 188 km ·Stratovolcano ·Elevation: 1'474 m ·Last eruption: 1814 ·United States
  • Mageik
    Distance: 188 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Martin
    Distance: 189 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Chiginagak
    Distance: 189 km ·Stratovolcano ·Elevation: 2'221 m ·Last eruption: 1998 ·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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