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M1.8 Depth: 16.0 km

M1.8 Earthquake near 109 km S of McCarthy, Alaska (United States)

UTC time: 2025-09-29 00:26:45 UTC Local time: —

About this earthquake

On September 29, 2025 at 00:26 UTC, a magnitude M1.8 earthquake occurred near 109 km S of McCarthy, Alaska (United States). With a focal depth of about 16 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. 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: over the past 24 hours, QuakeMap24 logged 173 earthquakes, the strongest at M3.4.

Details

Magnitude
M1.8
Depth
16.0 km
UTC time
2025-09-29 00:26:45 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
60.45260, -142.92550
Temperature
-3.8°C

Map

Depth profile

Depth profile Depth: 16 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16 km
Shallow
16 km
16 km — close to 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

  • Churchill
    Distance: 121 km ·Stratovolcano ·Elevation: 5'005 m ·Last eruption: 847 ·United States
  • Wrangell
    Distance: 182 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Fort Selkirk
    Distance: 401 km ·Volcanic field ·Elevation: 1'239 m ·Canada
  • Alligator Lake
    Distance: 412 km ·Volcanic field ·Elevation: 2'217 m ·Canada
  • Buzzard Creek
    Distance: 492 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·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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