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United States · California

M2.3 Earthquake near Summit West, California (United States)

UTC time: 2026-10-09 09:58:30 UTC Local time: —

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About this earthquake

On October 9, 2026 at 09:58 UTC, a magnitude M2.3 earthquake occurred near Summit West, California (United States). The hypocenter lay relatively close to the surface at around 13 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: over the past 24 hours, QuakeMap24 logged 187 earthquakes, the strongest at M3.7.

Details

ID
8ebc77ad407453ba1e3385823a3efa969be26b91
Magnitude
M2.3
Depth
12.9 km
UTC time
2026-10-09 09:58:30 UTC
Local time
—
Country
United States
State
California
City
Summit West
County
Santa Cruz County
Village
Summit West
Source
usgs
Coordinates
37.13383, -121.99000
Temperature
14.2°C

Depth profile

Depth profile Depth: 12.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 12.9 km
Shallow
12.9 km
12.9 km — close to 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

  • Clear Lake Volcanic Field
    Distance: 215 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mammoth Mountain
    Distance: 267 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono-Inyo Craters
    Distance: 272 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mono Lake Volcanic Field
    Distance: 278 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Lassen Volcanic Center
    Distance: 376 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 380 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Mineta San Jose International AirportUnited States · SJC · KSJC
    26.0 kmStraight-line distance
  • San Carlos AirportUnited States · SQL · KSQL
    48.1 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

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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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