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United States · California

M1.7 Earthquake near Country Club, California (United States)

UTC time: 2026-09-21 05:41:59 UTC Local time: —

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About this earthquake

A magnitude M1.7 earthquake was recorded near Country Club, California (United States) on September 21, 2026 at 05:41 UTC. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Events of this size typically go unnoticed.

The event was recorded by USGS. United States: over the past 24 hours, QuakeMap24 logged 182 earthquakes, the strongest at M3.3.

Details

ID
e5269785d70d04a2f8bfda8bcaed524c9500d1b9
Magnitude
M1.7
Depth
10.5 km
UTC time
2026-09-21 05:41:59 UTC
Local time
—
Country
United States
State
California
City
Country Club
County
Marin County
Source
usgs
Coordinates
37.98050, -122.50050
Temperature
12.6°C

Depth profile

Depth profile Depth: 10.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10.5 km
Shallow
10.5 km
10.5 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: 113 km ·Volcanic field ·Elevation: 1'439 m ·United States
  • Lassen Volcanic Center
    Distance: 292 km ·Stratovolcano ·Elevation: 3'187 m ·Last eruption: 1917 ·United States
  • Mono Lake Volcanic Field
    Distance: 304 km ·Volcanic field ·Elevation: 2'121 m ·Last eruption: 1790 ·United States
  • Mono-Inyo Craters
    Distance: 305 km ·Lava dome(s) ·Elevation: 2'796 m ·Last eruption: 1380 ·United States
  • Mammoth Mountain
    Distance: 307 km ·Lava dome(s) ·Elevation: 3'369 m ·Last eruption: 1260 ·United States
  • Soda Lakes
    Distance: 358 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
    37.9 kmStraight-line distance
  • Buchanan FieldUnited States · CCR · KCCR
    38.9 kmStraight-line distance
  • San Francisco International AirportUnited States · SFO · KSFO
    41.6 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-21

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

21 Sep 2025 – 21 Sep 2026 · M ≥ 2.0 · 2,414 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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