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United States · California

M1.4 Earthquake near Rancho Cucamonga, California (United States)

UTC time: 2026-09-09 23:49:23 UTC Local time: —
Magnitude
M1.4
Depth
31.1 km
Source
SCEDC

California · Rancho Cucamonga

Country overview

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About this earthquake

On September 9, 2026 at 23:49 UTC, a magnitude M1.4 earthquake occurred near Rancho Cucamonga, California (United States). With a focal depth of about 31 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by SCEDC and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 218 earthquakes, the strongest at M3.0.

Depth profile

Depth profile Depth: 31.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 31.1 km
Shallow
31.1 km
31.1 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: 208 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 323 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Mammoth Mountain
    Distance: 412 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 431 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 451 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Pinacate
    Distance: 456 km ·Volcanic field ·Elevation: 1'183 m ·Mexico

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Ontario International AirportUnited States · ONT · KONT
    6.9 kmStraight-line distance
  • San Bernardino International AirportUnited States · SBD · KSBD
    31.3 kmStraight-line distance

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

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

10 Sep 2025 – 09 Sep 2026 · M ≥ 2.0 · 2,413 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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