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United States · California

M1.2 Earthquake near Limestone Canyon, California (United States)

UTC time: 2026-10-03 23:49:08 UTC Local time: —
Magnitude
M1.2
Depth
11.3 km
Source
SCEDC

California · Limestone Canyon

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About this earthquake

A magnitude M1.2 earthquake was recorded near Limestone Canyon, California (United States) on October 3, 2026 at 23:49 UTC. With a focal depth of about 11 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by SCEDC and cross-checked across seismological networks. United States: 145 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
8bde1b37fcb2b39d883472a99528c871904c08c3
Magnitude
M1.2
Depth
11.3 km
UTC time
2026-10-03 23:49:08 UTC
Local time
—
Country
United States
State
California
City
Limestone Canyon
County
Orange County
Source
scedc
Coordinates
33.73217, -117.70167
Temperature
34.9°C

Depth profile

Depth profile Depth: 11.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11.3 km
Shallow
11.3 km
11.3 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: 202 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 366 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 445 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mammoth Mountain
    Distance: 450 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
  • Mono Lake Volcanic Field
    Distance: 489 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • John Wayne Orange County International AirportUnited States · SNA · KSNA
    16.8 kmStraight-line distance
  • Ontario International AirportUnited States · ONT · KONT
    37.2 kmStraight-line distance
  • Long Beach International AirportUnited States · LGB · KLGB
    42.5 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-03

Nuclear power plants

  • San Onofre nuclear power plantUnited StatesPermanently shut downReactor units at site: 3
    42.7 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

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

04 Oct 2025 – 04 Oct 2026 · M ≥ 2.0 · 2,445 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

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

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