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M3.3 Depth: 40.7 km

M3.3 Earthquake near KODIAK ISLAND REGION, ALASKA (United States)

UTC time: 2025-08-04 14:53:34 UTC Local time: —

About this earthquake

On August 4, 2025 at 14:53 UTC, a magnitude M3.3 earthquake occurred near KODIAK ISLAND REGION, ALASKA (United States). With a focal depth of about 41 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. United States: 236 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude
M3.3
Depth
40.7 km
UTC time
2025-08-04 14:53:34 UTC
Local time
—
Country
United States
City
Alaska
Source
emsc
Coordinates
56.88360, -154.19970
Temperature
13.9°C

Map

Depth profile

Depth profile Depth: 40.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40.7 km
Shallow
40.7 km
40.7 km — deeper than the regional average (15.3 km)
Regional average: 15.3 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: 132 km ·Lava dome ·Elevation: 402 m ·United States
  • Kialagvik
    Distance: 158 km ·Stratovolcano ·Elevation: 1'677 m ·United States
  • Mageik
    Distance: 159 km ·Stratovolcano ·Elevation: 2'165 m ·Last eruption: -500 ·United States
  • Martin
    Distance: 159 km ·Stratovolcano ·Elevation: 1'863 m ·Last eruption: 1953 ·United States
  • Trident
    Distance: 160 km ·Stratovolcano ·Elevation: 1'864 m ·Last eruption: 1974 ·United States
  • Katmai
    Distance: 162 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States

Historic earthquake map · United States

Open history map
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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