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M1.3 Depth: 34.2 km

M1.3 Earthquake near 29 km SSE of Knik River, Alaska (United States)

UTC time: 2025-09-23 13:39:29 UTC Local time: —

About this earthquake

A magnitude M1.3 earthquake was recorded near 29 km SSE of Knik River, Alaska (United States) on September 23, 2025 at 13:39 UTC. 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 small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 164 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.3
Depth
34.2 km
UTC time
2025-09-23 13:39:29 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
61.21140, -148.70840
Temperature
2.3°C

Map

Depth profile

Depth profile Depth: 34.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 34.2 km
Shallow
34.2 km
34.2 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

  • Spurr
    Distance: 190 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Hayes
    Distance: 203 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Redoubt
    Distance: 233 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Wrangell
    Distance: 263 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
  • Iliamna
    Distance: 273 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Buzzard Creek
    Distance: 317 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·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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