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United States · Washington

M0.3 Earthquake near Pierce County, Washington (United States)

UTC time: 2026-09-18 16:21:35 UTC Local time: —

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About this earthquake

On September 18, 2026 at 16:21 UTC, a magnitude M0.3 earthquake occurred near Pierce County, Washington (United States). The hypocenter lay relatively close to the surface at around 8 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 182 earthquakes were recorded in the past 24 hours, the strongest reaching M3.3.

Details

ID
d8fa9f37b73a251cae4c90895c2046c833e1f6ab
Magnitude
M0.3
Depth
8.3 km
UTC time
2026-09-18 16:21:35 UTC
Local time
—
Country
United States
State
Washington
City
Pierce County
County
Pierce County
Source
usgs
Coordinates
46.94133, -122.00850
Temperature
13.5°C

Depth profile

Depth profile Depth: 8.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 8.3 km
Shallow
8.3 km
8.3 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

  • Rainier
    Distance: 21 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States
  • St. Helens
    Distance: 83 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • Adams
    Distance: 91 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Indian Heaven
    Distance: 113 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • West Crater
    Distance: 118 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • Glacier Peak
    Distance: 147 km ·Stratovolcano ·Elevation: 3'213 m ·Last eruption: 1700 ·United States

Washington

Context for this earthquake

21 Sep 2025 – 21 Sep 2026 · M ≥ 2.0 · 85 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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Country statistics · United States

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