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United States · California

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

UTC time: 2026-08-23 05:06:00 UTC Local time: —

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About this earthquake

On August 23, 2026 at 05:06 UTC, a magnitude M0.5 earthquake occurred near Riverside County, California (United States). With a focal depth of about 12 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 180 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

ID
464ec2a4524116169e1a544dc3168646cbca80a2
Magnitude
M0.5
Depth
12.1 km
UTC time
2026-08-23 05:06:00 UTC
Local time
—
Country
United States
State
California
City
Riverside County
County
Riverside County
Source
usgs
Coordinates
33.66083, -117.00917
Temperature
28.6°C

Depth profile

Depth profile Depth: 12.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.1 km
Shallow
12.1 km
12.1 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

  • Salton Buttes
    Distance: 139 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 376 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 385 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Uinkaret Field
    Distance: 465 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Mammoth Mountain
    Distance: 478 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • San Luis, Isla
    Distance: 478 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico

California

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 2,447 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · United States

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Country statistics · United States

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