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United States · Washington

M3.9 Earthquake near Cowlitz County, Washington (United States)

UTC time: 2026-09-05 11:09:28 UTC Local time: —

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About this earthquake

On September 5, 2026 at 11:09 UTC, a magnitude M3.9 earthquake occurred near Cowlitz County, Washington (United States). With a focal depth of about 9 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 210 earthquakes, the strongest at M3.3.

Details

ID
2b2688a1cac6409891b8ad4cdcfeef6da1c02822
Magnitude
M3.9
Depth
9.0 km
UTC time
2026-09-05 11:09:28 UTC
Local time
—
Country
United States
State
Washington
City
Cowlitz County
County
Cowlitz County
Source
usgs
Coordinates
46.22060, -122.60370
Temperature
10.3°C

Depth profile

Depth profile Depth: 9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 9 km
Shallow
9 km
9 km — shallower than 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

Felt reports

1felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Sep 5, 2026, 11:11 AM UTC · Last checked: Oct 5, 2026, 5:22 PM UTC

Source: EMSC / LastQuake

Volcanoes nearby

  • St. Helens
    Distance: 33 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • West Crater
    Distance: 55 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • Indian Heaven
    Distance: 69 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • Adams
    Distance: 86 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Rainier
    Distance: 95 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States
  • Hood
    Distance: 118 km ·Stratovolcano ·Elevation: 3'426 m ·Last eruption: 1866 ·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
    29.6 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

United States

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 1,428 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

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