M0.9 Depth: 78.4 km

M0.9 Earthquake near 29 km WSW of Petersville, Alaska (United States)

UTC time: 2025-08-22 02:26:43 UTC Local time: —

About this earthquake

A magnitude M0.9 earthquake was recorded near 29 km WSW of Petersville, Alaska (United States) on August 22, 2025 at 02:26 UTC. At around 78 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 201 earthquakes, the strongest at M3.7.

Details

Magnitude

M0.9

Depth

78.4 km

UTC time

2025-08-22 02:26:43 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

62.43270, -151.32510

Temperature

12.1°C

Map

Depth profile

Intermediate

78.4 km

78.4 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: 105 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
Spurr

Distance: 135 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
Redoubt

Distance: 229 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
Buzzard Creek

Distance: 232 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
Iliamna

Distance: 283 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
Augustine

Distance: 360 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.

Stats (last 24h)

Global (24h)

766

Country (24h)