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M0.5 Depth: 12.2 km

M0.5 Earthquake near Riverside County, California (United States)

UTC time: 2026-08-28 03:06:19 UTC Local time: —

About this earthquake

A magnitude M0.5 earthquake was recorded near Riverside County, California (United States) on August 28, 2026 at 03:06 UTC. The hypocenter lay relatively close to the surface at around 12 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by USGS. United States: 192 earthquakes were recorded in the past 24 hours, the strongest reaching M4.4.

Map

Depth profile

Depth profile Depth: 12.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.2 km
Shallow
12.2 km
12.2 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

  • Salton Buttes
    Distance: 131 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 377 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 377 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Uinkaret Field
    Distance: 459 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • San Luis, Isla
    Distance: 473 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Mammoth Mountain
    Distance: 482 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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