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United States · California

M1.7 Earthquake near Mendocino County, California (United States)

UTC time: 2026-10-23 17:27:40 UTC Local time: —

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About this earthquake

On October 23, 2026 at 17:27 UTC, a magnitude M1.7 earthquake occurred near Mendocino County, California (United States). With a focal depth of about 7 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: 181 earthquakes were recorded in the past 24 hours, the strongest reaching M4.2.

Details

ID
eda4c1dc4cda869d6f2b3ed0ba320c27cf57d609
Magnitude
M1.7
Depth
7.4 km
UTC time
2026-10-23 17:27:40 UTC
Local time
—
Country
United States
State
California
City
Mendocino County
County
Mendocino County
Source
usgs
Coordinates
39.57133, -123.37117
Temperature
13.2°C

Depth profile

Depth profile Depth: 7.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.4 km
Shallow
7.4 km
7.4 km — shallower 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

  • Clear Lake Volcanic Field
    Distance: 85 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 189 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Shasta
    Distance: 227 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Medicine Lake
    Distance: 274 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Escanaba Segment
    Distance: 384 km ·Fissure vent(s) ·Elevation: -1'700 m ·Last eruption: -2260 ·United States
  • Soda Lakes
    Distance: 385 km ·Maar(s) ·Elevation: 1'251 m ·United States

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.

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Historic earthquake map · United States

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Country statistics · United States

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