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United States · California

M1.2 Earthquake near Downtown Brea, California (United States)

UTC time: 2026-10-17 17:29:21 UTC Local time: —

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About this earthquake

On October 17, 2026 at 17:29 UTC, a magnitude M1.2 earthquake occurred near Downtown Brea, California (United States). The hypocenter lay relatively close to the surface at around 17 km, increasing how strongly it was felt. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The event was recorded by SCEDC. United States: 145 earthquakes were recorded in the past 24 hours, the strongest reaching M3.8.

Details

ID
005a07955e842895397d0ca03b52544f58d73410
Magnitude
M1.2
Depth
17.3 km
UTC time
2026-10-17 17:29:21 UTC
Local time
—
Country
United States
State
California
City
Downtown Brea
County
Orange County
Source
scedc
Coordinates
33.93683, -117.89716
Temperature
29.1°C

Depth profile

Depth profile Depth: 17.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 17.3 km
Shallow
17.3 km
17.3 km — close to 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: 227 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 345 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 423 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 442 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 463 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 472 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Long Beach International AirportUnited States · LGB · KLGB
    26.9 kmStraight-line distance
  • John Wayne Orange County International AirportUnited States · SNA · KSNA
    29.2 kmStraight-line distance
  • Ontario International AirportUnited States · ONT · KONT
    30.3 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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