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M2.1 Depth: 12.8 km

M2.1 Earthquake near Walnut Creek, California (United States)

UTC time: 2026-08-08 22:18:26 UTC Local time: —

About this earthquake

A magnitude M2.1 earthquake was recorded near Walnut Creek, California (United States) on August 8, 2026 at 22:18 UTC. The hypocenter lay relatively close to the surface at around 13 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 173 earthquakes were recorded in the past 24 hours, the strongest reaching M5.5.

Map

Depth profile

Depth profile Depth: 12.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.8 km
Shallow
12.8 km
12.8 km — close to the regional average (15.5 km)
Regional average: 15.5 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

  • Clear Lake Volcanic Field
    Distance: 141 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mono-Inyo Craters
    Distance: 265 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 265 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mammoth Mountain
    Distance: 266 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Lassen Volcanic Center
    Distance: 299 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 333 km ·Maar(s) ·Elevation: 1'251 m ·United States

Historic earthquake map · United States

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Country statistics · United States

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View earthquake KPIs, strongest and latest events, and averages for this country.

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