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M4.2 Depth: 45.9 km

M4.2 Earthquake near 30 km ESE of Kasilof, Alaska (United States)

UTC time: 2025-10-13 02:52:31 UTC Local time: —

About this earthquake

On October 13, 2025 at 02:52 UTC, a magnitude M4.2 earthquake occurred near 30 km ESE of Kasilof, Alaska (United States). The hypocenter lay relatively close to the surface at around 46 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 214 earthquakes, the strongest at M5.5.

Details

Magnitude
M4.2
Depth
45.9 km
UTC time
2025-10-13 02:52:31 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.22020, -150.78270
Temperature
5.2°C

Map

Depth profile

Depth profile Depth: 45.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 45.9 km
Shallow
45.9 km
45.9 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

  • Redoubt
    Distance: 112 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 129 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Spurr
    Distance: 144 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Augustine
    Distance: 176 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
  • Hayes
    Distance: 181 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Douglas
    Distance: 217 km ·Stratovolcano ·Elevation: 2'140 m ·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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