Recent Earthquakes Near Half Moon Bay, California - USGS Data

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

Half Moon Bay, California has had: (M1.5 or greater)

8 earthquakes in the past 24 hours

113 earthquakes in the past 7 days

391 earthquakes in the past 30 days

3335 earthquakes in the past 365 days

The largest earthquake in Half Moon Bay, California:

Past 24 Hours: M3.3 - 9 km SSE of San Juan Bautista, CA

Past 7 Days: M3.6 - 4 km SE of San Ramon, CA

Past 30 Days: M5.9 - 6 km E of Dayton, Nevada

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(113 earthquakes in 7 days)

Activity Trend

Increasing(Last 7d: 113, Prev 7d: 74)

Swarm Detection

Detected 1 potential swarm(s) in the last 24 hours

  • • 10 km SSE of San Juan Bautista, CA: 4 earthquakes