QuakePulse

Recent Earthquakes Near Grass Valley, California - USGS Data

Track recent earthquakes within 200 miles of Grass Valley, California, with real-time USGS data (M1.5+). View seismic activity on our interactive map. No quakes recently? Explore other quake-prone areas.

View biggest historical earthquakes near Grass Valley, California →

Grass Valley, California has had: (M1.5 or greater)

16 earthquakes in the past 24 hours

83 earthquakes in the past 7 days

351 earthquakes in the past 30 days

4263 earthquakes in the past 365 days

The largest earthquake in Grass Valley, California:

Past 24 Hours: M5.0 - 1 km NNE of Brookdale, California

Past 7 Days: M5.0 - 1 km NNE of Brookdale, California

Past 30 Days: M5.0 - 1 km NNE of Brookdale, California

Past 365 Days: M5.9 - 6 km E of Dayton, Nevada

Recent Earthquakes

Seismic Activity Analysis

This card summarizes recent seismic activity, trends, and swarm detection for this region.

Recent Activity

Several Events(83 earthquakes in 7 days)

Activity Trend

Stable(Last 7d: 83, Prev 7d: 67)

Swarm Detection

Detected 3 potential swarm(s) in the last 24 hours

  • • 1 km SE of Boulder Creek, CA: 3 earthquakes
  • • 3 km W of Cobb, CA: 3 earthquakes
  • • 4 km NNE of Pinnacles, CA: 3 earthquakes

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