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M1.1 Depth: 16.9 km

M1.1 Earthquake near Riverside County, California (United States)

UTC time: 2026-08-08 23:53:15 UTC Local time: —

About this earthquake

On August 8, 2026 at 23:53 UTC, a magnitude M1.1 earthquake occurred near Riverside County, California (United States). 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 event was recorded by USGS. United States: 174 earthquakes were recorded in the past 24 hours, the strongest reaching M5.5.

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: 142 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 341 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 390 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Uinkaret Field
    Distance: 427 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Mammoth Mountain
    Distance: 451 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 468 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States

Historic earthquake map · United States

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · United States

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

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