M1.8 Depth: 121.6 km

M1.8 Earthquake near 67 km ENE of Pedro Bay, Alaska (United States)

UTC time: 2025-10-21 18:21:05 UTC Local time: —

About this earthquake

On October 21, 2025 at 18:21 UTC, a magnitude M1.8 earthquake occurred near 67 km ENE of Pedro Bay, Alaska (United States). At around 122 km, the focal depth places this among intermediate-depth events. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 187 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Details

Magnitude

M1.8

Depth

121.6 km

UTC time

2025-10-21 18:21:05 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

60.08000, -153.04240

Temperature

-4.6°C

Map

Depth profile

Intermediate

121.6 km

121.6 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

Iliamna

Distance: 6 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
Redoubt

Distance: 48 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
Augustine

Distance: 83 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
Douglas

Distance: 139 km ·Stratovolcano ·Elevation: 2'140 m ·United States
Spurr

Distance: 142 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
Fourpeaked

Distance: 150 km ·Stratovolcano ·Elevation: 2'105 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)

600

Country (24h)