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United States · California

M1.5 Earthquake near Riverside County, California (United States)

UTC time: 2026-10-26 23:31:39 UTC Local time: —
Magnitude
M1.5
Depth
19.4 km
Source
SCEDC

California · Riverside County

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About this earthquake

On October 26, 2026 at 23:31 UTC, a magnitude M1.5 earthquake occurred near Riverside County, California (United States). The hypocenter lay relatively close to the surface at around 19 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by SCEDC. United States: over the past 24 hours, QuakeMap24 logged 180 earthquakes, the strongest at M5.0.

Details

ID
7b40f162cd62e91552aa0ce7867b9fa8b0011bcc
Magnitude
M1.5
Depth
19.4 km
UTC time
2026-10-26 23:31:39 UTC
Local time
—
Country
United States
State
California
City
Riverside County
County
Riverside County
Source
scedc
Coordinates
33.81717, -117.43850
Temperature
26.5°C

Depth profile

Depth profile Depth: 19.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 19.4 km
Shallow
19.4 km
19.4 km — deeper 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: 183 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 356 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 428 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mammoth Mountain
    Distance: 448 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 466 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Uinkaret Field
    Distance: 485 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Ontario International AirportUnited States · ONT · KONT
    30.5 kmStraight-line distance
  • San Bernardino International AirportUnited States · SBD · KSBD
    36.2 kmStraight-line distance
  • John Wayne Orange County International AirportUnited States · SNA · KSNA
    42.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

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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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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