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United States · California

M1.4 Earthquake near Yucaipa, California (United States)

UTC time: 2026-10-21 04:21:39 UTC Local time: —

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About this earthquake

On October 21, 2026 at 04:21 UTC, a magnitude M1.4 earthquake occurred near Yucaipa, California (United States). The hypocenter lay relatively close to the surface at around 19 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 USGS. United States: 147 earthquakes were recorded in the past 24 hours, the strongest reaching M5.3.

Details

ID
04ebe3a5d801ef01070650269689ef7aa0e8b163
Magnitude
M1.4
Depth
18.6 km
UTC time
2026-10-21 04:21:39 UTC
Local time
—
Country
United States
State
California
City
Yucaipa
County
San Bernardino County
Source
usgs
Coordinates
34.03067, -117.09500
Temperature
16.7°C

Depth profile

Depth profile Depth: 18.6 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 18.6 km
Shallow
18.6 km
18.6 km — deeper than the regional average (15.3 km)
Regional average: 15.3 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: 165 km ·Lava dome(s) ·Elevation: -40 m ·Last eruption: 210 ·United States
  • Ubehebe Craters
    Distance: 334 km ·Maar(s) ·Elevation: 752 m ·Last eruption: -150 ·United States
  • Pinacate
    Distance: 414 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mammoth Mountain
    Distance: 437 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Uinkaret Field
    Distance: 445 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States
  • Mono-Inyo Craters
    Distance: 454 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

  • San Bernardino International AirportUnited States · SBD · KSBD
    15.0 kmStraight-line distance
  • Ontario International AirportUnited States · ONT · KONT
    46.7 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

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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