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United States · California

M1.5 Earthquake near Tehama County, California (United States)

UTC time: 2026-09-23 15:30:16 UTC Local time: —

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About this earthquake

A magnitude M1.5 earthquake was recorded near Tehama County, California (United States) on September 23, 2026 at 15:30 UTC. The hypocenter lay relatively close to the surface at around 7 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The data is provided by USGS and cross-checked across seismological networks. United States: over the past 24 hours, QuakeMap24 logged 187 earthquakes, the strongest at M3.5.

Details

ID
9ef95f79ba89cc3bc5b39116477f30614cafdd5b
Magnitude
M1.5
Depth
7.1 km
UTC time
2026-09-23 15:30:16 UTC
Local time
—
Country
United States
State
California
City
Tehama County
County
Tehama County
Source
usgs
Coordinates
40.28467, -121.37283
Temperature
8.9°C

Depth profile

Depth profile Depth: 7.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.1 km
Shallow
7.1 km
7.1 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

  • Lassen Volcanic Center
    Distance: 26 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 143 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 148 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Clear Lake Volcanic Field
    Distance: 189 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Soda Lakes
    Distance: 229 km ·Maar(s) ·Elevation: 1'251 m ·United States
  • Crater Lake
    Distance: 302 km ·Caldera ·Elevation: 2'487 m ·Last eruption: -2850 ·United States

California

Context for this earthquake

23 Sep 2025 – 23 Sep 2026 · M ≥ 2.0 · 2,412 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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Country statistics · United States

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