Back to map
M1.3 Depth: 70.0 km

M1.3 Earthquake near 9 km SE of Petersville, Alaska (United States)

UTC time: 2025-08-20 16:05:57 UTC Local time: —

About this earthquake

On August 20, 2025 at 16:05 UTC, a magnitude M1.3 earthquake occurred near 9 km SE of Petersville, Alaska (United States). The earthquake originated at an intermediate depth of about 70 km. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 200 earthquakes were recorded in the past 24 hours, the strongest reaching M3.7.

Details

Magnitude
M1.3
Depth
70.0 km
UTC time
2025-08-20 16:05:57 UTC
Local time
—
Country
United States
City
Alaska
Source
usgs
Coordinates
62.44410, -150.62940
Temperature
11.7°C

Map

Depth profile

Depth profile Depth: 70 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 70 km
Intermediate
70 km
70 km — deeper than the regional average (15.4 km)
Regional average: 15.4 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: 129 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
  • Spurr
    Distance: 153 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
  • Buzzard Creek
    Distance: 211 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
  • Redoubt
    Distance: 245 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
  • Iliamna
    Distance: 299 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
  • Wrangell
    Distance: 346 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·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.

Share