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United States · Washington

M0.4 Earthquake near Pierce County, Washington (United States)

UTC time: 2026-09-09 01:32:39 UTC Local time: —

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About this earthquake

A magnitude M0.4 earthquake was recorded near Pierce County, Washington (United States) on September 9, 2026 at 01:32 UTC. With a focal depth of about 7 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 185 earthquakes, the strongest at M3.6.

Details

ID
f497e4e342ab5e1e4d41fb5ef60c530a0e8a64fe
Magnitude
M0.4
Depth
6.9 km
UTC time
2026-09-09 01:32:39 UTC
Local time
—
Country
United States
State
Washington
City
Pierce County
County
Pierce County
Source
usgs
Coordinates
46.81883, -121.94133
Temperature
16.3°C

Depth profile

Depth profile Depth: 6.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.9 km
Shallow
6.9 km
6.9 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: 14 km ·Stratovolcano ·Elevation: 4'392 m ·Last eruption: 1450 ·United States
  • St. Helens
    Distance: 71 km ·Stratovolcano ·Elevation: 2'549 m ·Last eruption: 2008 ·United States
  • Adams
    Distance: 76 km ·Stratovolcano ·Elevation: 3'742 m ·Last eruption: 950 ·United States
  • Indian Heaven
    Distance: 99 km ·Volcanic field ·Elevation: 1'806 m ·Last eruption: -6250 ·United States
  • West Crater
    Distance: 105 km ·Volcanic field ·Elevation: 1'329 m ·Last eruption: -5750 ·United States
  • Glacier Peak
    Distance: 157 km ·Stratovolcano ·Elevation: 3'213 m ·Last eruption: 1700 ·United States

Washington

Context for this earthquake

13 Sep 2025 – 13 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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Country statistics · United States

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