M1.1 Depth: 97.5 km

M1.1 Earthquake near 62 km NNE of Petersville, Alaska (United States)

UTC time: 2025-07-28 04:37:57 UTC Local time: —

About this earthquake

A magnitude M1.1 earthquake was recorded near 62 km NNE of Petersville, Alaska (United States) on July 28, 2025 at 04:37 UTC. The earthquake originated at an intermediate depth of about 98 km. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 257 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude

M1.1

Depth

97.5 km

UTC time

2025-07-28 04:37:57 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

63.04010, -150.45450

Temperature

7.3°C

Map

Depth profile

Intermediate

97.5 km

97.5 km — deeper than the regional average (15.3 km)

Regional average: 15.3 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

Buzzard Creek

Distance: 151 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
Hayes

Distance: 186 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
Spurr

Distance: 215 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
Redoubt

Distance: 309 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
Wrangell

Distance: 350 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·United States
Iliamna

Distance: 362 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·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)

642

Country (24h)