Recent Earthquakes Near Ontario, California - USGS Data

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

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

6 earthquakes in the past 24 hours

69 earthquakes in the past 7 days

322 earthquakes in the past 30 days

4211 earthquakes in the past 365 days

The largest earthquake in Ontario, California:

Past 24 Hours: M2.6 - 6 km N of Santee, CA

Past 7 Days: M2.8 - 3 km WSW of Bombay Beach, CA

Past 30 Days: M3.3 - 11 km SSW of Borrego Springs, CA

Past 365 Days: M5.2 - 24 km SW of Lamont, CA

Recent Earthquakes

Seismic Activity Analysis

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


Recent Activity

Several Events(69 earthquakes in 7 days)

Activity Trend

Stable(Last 7d: 69, Prev 7d: 71)

Swarm Detection

No significant swarms detected in the last 24 hours