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United States · California

M1.0 Earthquake near Westmont, California (United States)

UTC time: 2026-09-12 10:12:36 UTC Local time: —

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About this earthquake

On September 12, 2026 at 10:12 UTC, a magnitude M1.0 earthquake occurred near Westmont, 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 USGS. United States: 283 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
e1370c74fd0516d96558ec029cf8b87376ed04ef
Magnitude
M1.0
Depth
19.4 km
UTC time
2026-09-12 10:12:36 UTC
Local time
—
Country
United States
State
California
City
Westmont
County
Los Angeles County
Source
usgs
Coordinates
33.93667, -118.29983
Temperature
21.1°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 (15.2 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: 262 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 351 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 416 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 435 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 457 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

  • Jack Northrop Field Hawthorne Municipal AirportUnited States · HHR · KHHR
    3.6 kmStraight-line distance
  • Los Angeles International AirportUnited States · LAX · KLAX
    10.0 kmStraight-line distance
  • Long Beach International AirportUnited States · LGB · KLGB
    19.2 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-12

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

12 Sep 2025 – 12 Sep 2026 · M ≥ 2.0 · 2,420 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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