12 km NNE of Trabuco Canyon, California, United StatesAug 15, 2026, 1:33 PM
Nearby significant earthquake36 km from Ontario9.45 km deep
Latest Earthquakes near Ontario
Live map and archive of seismic activity in and around Ontario, California.
Updated: 1:36:34 PM
Recent earthquakes that may have affected Ontario
Ontario Activity Report
M1.5+Past 24 Hours1
Past 7 Days1
Past 30 Days-
Past 365 Days-
Largest Measured Events
2.7
TodayView
12 km NNE of Trabuco Canyon, California, United States
2.7
This WeekView
12 km NNE of Trabuco Canyon, California, United States
This MonthNo events
This YearNo events
Filtered Statistics
Total Events
1
2.7
Largest Magnitude
12 km NNE of Trabuco Canyon, California, United States
Significant
0
2.7
Most Recent6 HR AGO
12 km NNE of Trabuco Canyon, California, United States
Depth distribution
Shallow-focus 1Intermediate-focus 0Deep-focus 0
Filtered Statistics
1 events
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Common Questions about Earthquakes near Ontario
Is Ontario in an earthquake-prone area?
Ontario 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 Ontario?
Use the filters above to check the latest earthquakes near Ontario. 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 Ontario?
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 Ontario.
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 15, 2026, 01:36 PM UTC. Data sources: USGS / EMSC / JMA / Geoscience Australia / GeoNet.