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M2.2 Depth: 40.0 km

M2.2 Earthquake near 29 km E of Larsen Bay, Alaska (United States)

UTC time: 2025-09-17 06:44:52 UTC Local time: —

About this earthquake

On September 17, 2025 at 06:44 UTC, a magnitude M2.2 earthquake occurred near 29 km E of Larsen Bay, Alaska (United States). The hypocenter lay relatively close to the surface at around 40 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 156 earthquakes, the strongest at M5.1.

Details

Magnitude
M2.2
Depth
40.0 km
UTC time
2025-09-17 06:44:52 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
57.59080, -153.49230
Temperature
5.8°C

Map

Depth profile

Depth profile Depth: 40 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 40 km
Shallow
40 km
40 km — deeper than the regional average (15.6 km)
Regional average: 15.6 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

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  • Snowy Mountain
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  • Katmai
    Distance: 115 km ·Stratovolcano ·Elevation: 2'047 m ·Last eruption: 1912 ·United States
  • Kaguyak
    Distance: 118 km ·Lava dome(s) ·Elevation: 901 m ·Last eruption: -3850 ·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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