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United States · Washington

M0.5 Earthquake near Skamania County, Washington (United States)

UTC time: 2026-08-20 19:36:18 UTC Local time: —

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About this earthquake

A magnitude M0.5 earthquake was recorded near Skamania County, Washington (United States) on August 20, 2026 at 19:36 UTC. With a focal depth of about 4 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: 186 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

ID
0f9c30e090e98d7e45c3da5bf91b7896e25ed681
Magnitude
M0.5
Depth
4.4 km
UTC time
2026-08-20 19:36:18 UTC
Local time
—
Country
United States
State
Washington
City
Skamania County
County
Skamania County
Source
usgs
Coordinates
46.19533, -122.16017
Temperature
25.2°C

Depth profile

Depth profile Depth: 4.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 4.4 km
Shallow
4.4 km
4.4 km — shallower than 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: 2 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • West Crater
    Distance: 36 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • Indian Heaven
    Distance: 39 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • Adams
    Distance: 52 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Rainier
    Distance: 79 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States
  • Hood
    Distance: 98 km ·Stratovolcano ·Elevation: 3'426 m ·Last eruption: 1866 ·United States

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.

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Historic earthquake map · United States

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