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United States · Washington

M0.4 Earthquake near Cowlitz County, Washington (United States)

UTC time: 2026-10-22 20:47:56 UTC Local time: —

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About this earthquake

On October 22, 2026 at 20:47 UTC, a magnitude M0.4 earthquake occurred near Cowlitz County, Washington (United States). With a focal depth of about 18 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: 201 earthquakes were recorded in the past 24 hours, the strongest reaching M3.3.

Details

ID
d770ca0ebe4606bf48e89297a4bf188cb31c6ed5
Magnitude
M0.4
Depth
17.7 km
UTC time
2026-10-22 20:47:56 UTC
Local time
—
Country
United States
State
Washington
City
Cowlitz County
County
Cowlitz County
Source
usgs
Coordinates
46.04917, -122.36717
Temperature
14.6°C

Depth profile

Depth profile Depth: 17.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 17.7 km
Shallow
17.7 km
17.7 km — close to the regional average (15.3 km)
Regional average: 15.3 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

  • St. Helens
    Distance: 22 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • West Crater
    Distance: 29 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • Indian Heaven
    Distance: 44 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • Adams
    Distance: 70 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Hood
    Distance: 91 km ·Stratovolcano ·Elevation: 3'426 m ·Last eruption: 1866 ·United States
  • Rainier
    Distance: 101 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Nuclear power plants

  • Trojan nuclear power plantUnited StatesPermanently shut downReactor units at site: 1
    39.9 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Washington

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 89 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

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.

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