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M0.9 Depth: 12.1 km

M0.9 Earthquake near Grays Harbor County, Washington (United States)

UTC time: 2026-08-20 18:06:29 UTC Local time: —

About this earthquake

On August 20, 2026 at 18:06 UTC, a magnitude M0.9 earthquake occurred near Grays Harbor County, Washington (United States). With a focal depth of about 12 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 255 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

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Depth profile

Depth profile Depth: 12.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.1 km
Shallow
12.1 km
12.1 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

Volcanoes nearby

  • Rainier
    Distance: 157 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States
  • St. Helens
    Distance: 171 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • West Crater
    Distance: 204 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • Adams
    Distance: 211 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Indian Heaven
    Distance: 212 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • Glacier Peak
    Distance: 214 km ·Stratovolcano ·Elevation: 3'213 m ·Last eruption: 1700 ·United States

Historic earthquake map · United States

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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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