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United States · Washington

M1.3 Earthquake near Cowlitz County, Washington (United States)

UTC time: 2026-09-15 15:15:37 UTC Local time: —

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About this earthquake

A magnitude M1.3 earthquake was recorded near Cowlitz County, Washington (United States) on September 15, 2026 at 15:15 UTC. With a focal depth of about 16 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 179 earthquakes, the strongest at M4.8.

Details

ID
660eb77ecc37bfc8d4d5980575a3881b7bac54c2
Magnitude
M1.3
Depth
15.7 km
UTC time
2026-09-15 15:15:37 UTC
Local time
—
Country
United States
State
Washington
City
Cowlitz County
County
Cowlitz County
Source
usgs
Coordinates
46.35500, -122.29733
Temperature
10.4°C

Depth profile

Depth profile Depth: 15.7 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 15.7 km
Shallow
15.7 km
15.7 km — close to the regional average (15.2 km)
Regional average: 15.2 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: 19 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: 60 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • Adams
    Distance: 64 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Rainier
    Distance: 69 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States
  • Hood
    Distance: 119 km ·Stratovolcano ·Elevation: 3'426 m ·Last eruption: 1866 ·United States

Washington

Context for this earthquake

15 Sep 2025 – 15 Sep 2026 · M ≥ 2.0 · 83 Catalogue entries

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

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Historic earthquake map · United States

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