M1.1 Depth: 35.6 km

M1.1 Earthquake near 7 km N of Houston, Alaska (United States)

UTC time: 2025-08-18 03:10:47 UTC Local time: —

About this earthquake

A magnitude M1.1 earthquake was recorded near 7 km N of Houston, Alaska (United States) on August 18, 2025 at 03:10 UTC. The hypocenter lay relatively close to the surface at around 36 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 227 earthquakes, the strongest at M3.9.

Details

Magnitude

M1.1

Depth

35.6 km

UTC time

2025-08-18 03:10:47 UTC

Local time

—

Country

United States

City

Alaska

Source

usgs

Coordinates

61.69910, -149.83060

Temperature

12.9°C

Map

Depth profile

Shallow

35.6 km

35.6 km — deeper 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: 136 km ·Stratovolcano ·Elevation: 3'374 m ·Last eruption: 1992 ·United States
Hayes

Distance: 136 km ·Stratovolcano ·Elevation: 3'034 m ·Last eruption: 1200 ·United States
Redoubt

Distance: 207 km ·Stratovolcano ·Elevation: 3'108 m ·Last eruption: 2009 ·United States
Iliamna

Distance: 256 km ·Stratovolcano ·Elevation: 3'053 m ·Last eruption: 1876 ·United States
Buzzard Creek

Distance: 272 km ·Tuff ring(s) ·Elevation: 830 m ·Last eruption: -1050 ·United States
Wrangell

Distance: 307 km ·Shield ·Elevation: 4'278 m ·Last eruption: 1912 ·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)

758

Country (24h)