M0.9 Depth: 0.4 km

M0.9 Earthquake near 78 km WNW of Tyonek, Alaska (United States)

UTC time: 2025-08-11 12:22:42 UTC Local time: —

About this earthquake

A magnitude M0.9 earthquake was recorded near 78 km WNW of Tyonek, Alaska (United States) on August 11, 2025 at 12:22 UTC. With a focal depth of about 0 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 177 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

Magnitude

M0.9

Depth

0.4 km

UTC time

2025-08-11 12:22:42 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

61.30670, -152.50260

Temperature

-4.7°C

Map

Depth profile

Shallow

0.4 km

0.4 km — shallower than the regional average (15.4 km)

Regional average: 15.4 km

Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

Spurr

Distance: 13 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
Hayes

Distance: 37 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
Redoubt

Distance: 92 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
Iliamna

Distance: 145 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
Augustine

Distance: 222 km ·Lava dome(s) ·Elevation: 1'218 m ·Last eruption: 2006 ·United States
Douglas

Distance: 279 km ·Stratovolcano ·Elevation: 2'140 m ·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)

557

Country (24h)