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United States · California

M1.4 Earthquake near San Ramon, California (United States)

UTC time: 2026-10-19 01:46:37 UTC Local time: —

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About this earthquake

A magnitude M1.4 earthquake was recorded near San Ramon, California (United States) on October 19, 2026 at 01:46 UTC. With a focal depth of about 6 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

The data is provided by USGS and cross-checked across seismological networks. United States: 188 earthquakes were recorded in the past 24 hours, the strongest reaching M2.9.

Details

ID
7b2f702cc074cc68f5856336f7f39119d6f7cfd2
Magnitude
M1.4
Depth
6.2 km
UTC time
2026-10-19 01:46:37 UTC
Local time
—
Country
United States
State
California
City
San Ramon
County
Contra Costa County
Source
usgs
Coordinates
37.77733, -121.99516
Temperature
17.2°C

Depth profile

Depth profile Depth: 6.2 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 6.2 km
Shallow
6.2 km
6.2 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

  • Clear Lake Volcanic Field
    Distance: 149 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Mono-Inyo Craters
    Distance: 261 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 261 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Mono Lake Volcanic Field
    Distance: 261 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Lassen Volcanic Center
    Distance: 305 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Soda Lakes
    Distance: 333 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Oakland San Francisco Bay AirportUnited States · OAK · KOAK
    20.9 kmStraight-line distance
  • Buchanan FieldUnited States · CCR · KCCR
    24.2 kmStraight-line distance
  • San Carlos AirportUnited States · SQL · KSQL
    37.0 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-05

Nuclear power plants

  • Vallecitos nuclear power plantUnited StatesPermanently shut downReactor units at site: 1
    23.2 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

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

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