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M0.4 Depth: 16.9 km

M0.4 Earthquake near Riverside County, California (United States)

UTC time: 2026-08-06 06:13:33 UTC Local time: —

About this earthquake

A magnitude M0.4 earthquake was recorded near Riverside County, California (United States) on August 6, 2026 at 06:13 UTC. The hypocenter lay relatively close to the surface at around 17 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: 167 earthquakes were recorded in the past 24 hours, the strongest reaching M4.5.

Map

Depth profile

Depth profile Depth: 16.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16.9 km
Shallow
16.9 km
16.9 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

  • Salton Buttes
    Distance: 121 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 369 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 376 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Uinkaret Field
    Distance: 448 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • San Luis, Isla
    Distance: 470 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Mammoth Mountain
    Distance: 483 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States

Historic earthquake map · United States

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Country statistics · United States

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

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