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United States · California

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

UTC time: 2026-08-29 22:53:09 UTC Local time: —

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About this earthquake

On August 29, 2026 at 22:53 UTC, a magnitude M1.7 earthquake occurred near Napa County, California (United States). The hypocenter lay relatively close to the surface at around 5 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 153 earthquakes, the strongest at M4.6.

Details

ID
6360ee58751d052efe15a391085463aeaefda24e
Magnitude
M1.7
Depth
5.0 km
UTC time
2026-08-29 22:53:09 UTC
Local time
—
Country
United States
State
California
City
Napa County
County
Napa County
Source
usgs
Coordinates
38.54533, -122.32983
Temperature
28.2°C

Depth profile

Depth profile Depth: 5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 5 km
Shallow
5 km
5 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: 61 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 228 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Mono Lake Volcanic Field
    Distance: 294 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 300 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 306 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Soda Lakes
    Distance: 317 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
    42.2 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-11-10

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

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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