M1.8 Depth: 108.8 km

M1.8 Earthquake near 62 km NNE of Petersville, Alaska (United States)

UTC time: 2025-12-20 19:31:20 UTC Local time: —

About this earthquake

A magnitude M1.8 earthquake was recorded near 62 km NNE of Petersville, Alaska (United States) on December 20, 2025 at 19:31 UTC. The earthquake originated at an intermediate depth of about 109 km. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 221 earthquakes were recorded in the past 24 hours, the strongest reaching M6.0.

Details

Magnitude

M1.8

Depth

108.8 km

UTC time

2025-12-20 19:31:20 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

63.04200, -150.50500

Temperature

-18.0°C

Map

Depth profile

Intermediate

108.8 km

108.8 km — deeper than the regional average (15.7 km)

Regional average: 15.7 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: 153 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
Hayes

Distance: 184 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
Spurr

Distance: 214 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
Redoubt

Distance: 308 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
Wrangell

Distance: 352 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)