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M4.0 Depth: 34.0 km

M4.0 Earthquake near Southern Alaska (United States)

UTC time: 2025-10-15 03:30:44 UTC Local time: —

About this earthquake

On October 15, 2025 at 03:30 UTC, a magnitude M4.0 earthquake occurred near Southern Alaska (United States). With a focal depth of about 34 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by ISC and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 206 earthquakes, the strongest at M5.5.

Details

Magnitude
M4.0
Depth
34.0 km
UTC time
2025-10-15 03:30:44 UTC
Local time
—
Country
United States
City
Alaska
Source
isc
Coordinates
61.73200, -147.48200
Temperature
-8.0°C

Map

Depth profile

Depth profile Depth: 34 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 34 km
Shallow
34 km
34 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

  • Wrangell
    Distance: 184 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Spurr
    Distance: 257 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 260 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Buzzard Creek
    Distance: 263 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Churchill
    Distance: 306 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Redoubt
    Distance: 315 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·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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