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M4.6 Depth: 84.4 km

M4.6 Earthquake near 23 km WSW of Petersville, Alaska (United States)

UTC time: 2025-08-06 18:38:57 UTC Local time: —

About this earthquake

On August 6, 2025 at 18:38 UTC, a magnitude M4.6 earthquake occurred near 23 km WSW of Petersville, Alaska (United States). The earthquake originated at an intermediate depth of about 84 km. 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: 180 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude
M4.6
Depth
84.4 km
UTC time
2025-08-06 18:38:57 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
62.44660, -151.21590
Temperature
17.4°C

Map

Depth profile

Depth profile Depth: 84.4 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 84.4 km
Intermediate
84.4 km
84.4 km — deeper than the regional average (15.9 km)
Regional average: 15.9 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Hayes
    Distance: 109 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 139 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Buzzard Creek
    Distance: 227 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Redoubt
    Distance: 233 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 287 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Augustine
    Distance: 363 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·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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