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M1.2 Depth: 10.4 km

M1.2 Earthquake near Ontario, California (United States)

UTC time: 2026-09-01 02:20:11 UTC Local time: —

About this earthquake

On September 1, 2026 at 02:20 UTC, a magnitude M1.2 earthquake occurred near Ontario, California (United States). With a focal depth of about 10 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 152 earthquakes were recorded in the past 24 hours, the strongest reaching M3.3.

Map

Depth profile

Depth profile Depth: 10.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.4 km
Shallow
10.4 km
10.4 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: 204 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 331 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 420 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 438 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Pinacate
    Distance: 451 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mono Lake Volcanic Field
    Distance: 459 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States

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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