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M2.2 Depth: 8.4 km

M2.2 Earthquake near 81 km SSW of Unalaska, Alaska (United States)

UTC time: 2025-07-23 23:05:46 UTC Local time: —

About this earthquake

A magnitude M2.2 earthquake was recorded near 81 km SSW of Unalaska, Alaska (United States) on July 23, 2025 at 23:05 UTC. The hypocenter lay relatively close to the surface at around 8 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: 229 earthquakes were recorded in the past 24 hours, the strongest reaching M3.6.

Details

Magnitude
M2.2
Depth
8.4 km
UTC time
2025-07-23 23:05:46 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
53.23250, -167.12500
Temperature
10.8°C

Map

Depth profile

Depth profile Depth: 8.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.4 km
Shallow
8.4 km
8.4 km — shallower 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

  • Okmok
    Distance: 70 km ·Shield ·Elevation: 1'073 m ·Last eruption: 2008 ·United States
  • Makushin
    Distance: 74 km ·Stratovolcano ·Elevation: 1'800 m ·Last eruption: 1995 ·United States
  • Recheschnoi
    Distance: 95 km ·Stratovolcano ·Elevation: 1'984 m ·United States
  • Bogoslof
    Distance: 98 km ·Stratovolcano ·Elevation: 150 m ·Last eruption: 2017 ·United States
  • Vsevidof
    Distance: 105 km ·Stratovolcano ·Elevation: 2'160 m ·Last eruption: 1878 ·United States
  • Akutan
    Distance: 125 km ·Stratovolcano ·Elevation: 1'303 m ·Last eruption: 1992 ·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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