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United States · California

M1.1 Earthquake near Redlands, California (United States)

UTC time: 2026-09-11 04:34:51 UTC Local time: —

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About this earthquake

A magnitude M1.1 earthquake was recorded near Redlands, California (United States) on September 11, 2026 at 04:34 UTC. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 234 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Details

ID
98a6b50392f3691afef5cb7a15cd1b85559eb14b
Magnitude
M1.1
Depth
10.8 km
UTC time
2026-09-11 04:34:51 UTC
Local time
—
Country
United States
State
California
City
Redlands
County
San Bernardino County
Source
usgs
Coordinates
34.04600, -117.20250
Temperature
26.4°C

Depth profile

Depth profile Depth: 10.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.8 km
Shallow
10.8 km
10.8 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: 175 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
  • Pinacate
    Distance: 423 km ·Volcanic field ·Elevation: 1'183 m ·Mexico
  • Mammoth Mountain
    Distance: 431 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 449 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Uinkaret Field
    Distance: 452 km ·Volcanic field ·Elevation: 1'555 m ·Last eruption: 1100 ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

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

Source: OurAirports · Dataset date: 2026-09-11

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

11 Sep 2025 – 11 Sep 2026 · M ≥ 2.0 · 2,414 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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