United States · California

M1.3 Earthquake near Castle Rock Springs, California (United States)

UTC time: 2026-09-11 14:58:49 UTC Local time:
Magnitude
M1.3
Depth
1.8 km
Source
USGS

California · Castle Rock Springs

Country overview

Map

About this earthquake

A magnitude M1.3 earthquake was recorded near Castle Rock Springs, California (United States) on September 11, 2026 at 14:58 UTC. The hypocenter lay relatively close to the surface at around 2 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: 236 earthquakes were recorded in the past 24 hours, the strongest reaching M5.4.

Details

ID
b724a9a391b643024e3c575725e96136b2dac2fa
Magnitude
M1.3
Depth
1.8 km
UTC time
2026-09-11 14:58:49 UTC
Local time
Country
State
County
Source
usgs
Coordinates
38.78200, -122.72234
Temperature
20.3°C

Depth profile

Depth profile Depth: 1.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.8 km
Shallow
1.8 km
1.8 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

  • Distance: 21 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Distance: 217 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Distance: 296 km ·Stratovolcano ·Elevation: 4'317 m ·Last eruption: 1250 ·United States
  • Distance: 330 km ·Shield ·Elevation: 2'412 m ·Last eruption: 1060 ·United States
  • Distance: 333 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Distance: 340 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

  • Charles M. Schulz Sonoma County AirportUnited States · STS · KSTS
    31.4 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 · 2,418 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

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

View earthquake KPIs, strongest and latest events, and averages for this country.

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