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United States · California

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

UTC time: 2026-10-01 00:05:56 UTC Local time: —

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About this earthquake

On October 1, 2026 at 00:05 UTC, a magnitude M1.1 earthquake occurred near Riverside County, California (United States). With a focal depth of about 28 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: over the past 24 hours, QuakeMap24 logged 174 earthquakes, the strongest at M4.2.

Details

ID
3904994b59dde7f58974f6c570374fc27be41ff4
Magnitude
M1.1
Depth
28.0 km
UTC time
2026-10-01 00:05:56 UTC
Local time
—
Country
United States
State
California
City
Riverside County
County
Riverside County
Source
usgs
Coordinates
33.53750, -116.93017
Temperature
28.8°C

Depth profile

Depth profile Depth: 28 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 28 km
Shallow
28 km
28 km — deeper 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: 128 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Pinacate
    Distance: 372 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Ubehebe Craters
    Distance: 390 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • San Luis, Isla
    Distance: 463 km ·Tuff cone ·Elevation: 183 m ·Last eruption: -1141 ·Mexico
  • Uinkaret Field
    Distance: 469 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Mammoth Mountain
    Distance: 493 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States

California

Context for this earthquake

01 Oct 2025 – 30 Sep 2026 · M ≥ 2.0 · 2,444 Catalogue entries

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

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Historic earthquake map · United States

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Country statistics · United States

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