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United States · California

M1.0 Earthquake near Napa County, California (United States)

UTC time: 2026-09-13 00:29:09 UTC Local time: —

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About this earthquake

A magnitude M1.0 earthquake was recorded near Napa County, California (United States) on September 13, 2026 at 00:29 UTC. The hypocenter lay relatively close to the surface at around 8 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: 263 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

ID
1e596605c25575cadbf45098e3e0279d2d8d9009
Magnitude
M1.0
Depth
7.8 km
UTC time
2026-09-13 00:29:09 UTC
Local time
—
Country
United States
State
California
City
Napa County
County
Napa County
Source
usgs
Coordinates
38.46967, -122.40483
Temperature
25.2°C

Depth profile

Depth profile Depth: 7.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 7.8 km
Shallow
7.8 km
7.8 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

  • Clear Lake Volcanic Field
    Distance: 64 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 238 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Mono Lake Volcanic Field
    Distance: 299 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 304 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 310 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Soda Lakes
    Distance: 327 km ·Maar(s) ·Elevation: 1'251 m ·United States

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Charles M. Schulz Sonoma County AirportUnited States · STS · KSTS
    35.8 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-12

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

13 Sep 2025 – 12 Sep 2026 · M ≥ 2.0 · 2,416 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

Open history map
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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