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United States · California

M1.0 Earthquake near Rancho Santa Margarita, California (United States)

UTC time: 2026-09-26 13:55:08 UTC Local time: —
Magnitude
M1.0
Depth
0.0 km
Source
SCEDC

California · Rancho Santa Margarita

Country overview

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About this earthquake

On September 26, 2026 at 13:55 UTC, a magnitude M1.0 earthquake occurred near Rancho Santa Margarita, California (United States). Events of this size typically go unnoticed.

The event was recorded by SCEDC. United States: 167 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Depth profile

Depth profile Depth: -0 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km -0 km
Shallow
-0 km
0 km — shallower than the regional average (15.2 km)
Regional average: 15.2 km
Negative depth = focus above sea level (terrain elevation).
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: 190 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 377 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 431 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mammoth Mountain
    Distance: 464 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 482 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • John Wayne Orange County International AirportUnited States · SNA · KSNA
    26.2 kmStraight-line distance
  • Ontario International AirportUnited States · ONT · KONT
    47.4 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-26

Nuclear power plants

  • San Onofre nuclear power plantUnited StatesPermanently shut downReactor units at site: 3
    29.3 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

26 Sep 2025 – 26 Sep 2026 · M ≥ 2.0 · 2,423 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

Open history map
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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