6 km SE of Ontario, California, United StatesAug 16, 2026, 8:35 PM
Nearby significant earthquake41 km from Rancho Santa Margarita5.59 km deep
Latest Earthquakes near Rancho Santa Margarita
Live map and archive of seismic activity in and around Rancho Santa Margarita, California.
Updated: 9:01:20 PM
Recent earthquakes that may have affected Rancho Santa Margarita
Rancho Santa Margarita Activity Report
M1.5+Past 24 Hours1
Past 7 Days3
Past 30 Days-
Past 365 Days-
Largest Measured Events
2.8
TodayView
6 km SE of Ontario, California, United States
3.0
This WeekView
10 km WSW of Corona, California, United States
This MonthNo events
This YearNo events
Filtered Statistics
Total Events
3
3.0
Largest Magnitude
10 km WSW of Corona, California, United States
Significant
0
2.8
Most Recent20 HR AGO
6 km SE of Ontario, California, United States
Depth distribution
Shallow-focus 3Intermediate-focus 0Deep-focus 0
Filtered Statistics
3 events
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Common Questions about Earthquakes near Rancho Santa Margarita
Is Rancho Santa Margarita in an earthquake-prone area?
Rancho Santa Margarita and the surrounding California region may experience seismic activity of varying strength. The map above helps you review nearby recent events and get a quick sense of local seismic patterns.
When was the last earthquake near Rancho Santa Margarita?
Use the filters above to check the latest earthquakes near Rancho Santa Margarita. The past-hour, past-day, and past-7-day views are especially helpful if you are monitoring current activity.
What is the largest earthquake recorded near Rancho Santa Margarita?
Switch to a wider custom date range to look further back in the archive. That makes it much easier to identify the strongest historical earthquakes around Rancho Santa Margarita.
How far back does the earthquake data go?
Our broader archive reaches back to 1900. To keep performance stable, the visible list is capped at the 2000 most relevant events for your current filters.
Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Aug 16, 2026, 09:01 PM UTC. Data sources: USGS / EMSC / JMA / Geoscience Australia / GeoNet.