4 km SE of Piru, CaliforniaSep 30, 2026, 03:00
Nearby significant earthquake109 km from Ontario10.7 km deep196 felt reports
Latest Earthquakes near Ontario
Live map and archive of seismic activity in and around Ontario, California.
Updated: 12:40
Recent earthquakes that may have affected Ontario
Ontario Activity Report
M1.5+Largest Measured Events
Filtered Statistics
Total Events
1
3.5
Largest Magnitude
Hermosa Beach, CA · 7 km WSW
Significant
0
3.5
Most Recent3 DAYS AGO
Hermosa Beach, CA · 7 km WSW
Depth distribution
Shallow-focus 1Intermediate-focus 0Deep-focus 0
Filtered Statistics
1 events
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Latest earthquakes in nearby cities
Live map and archive of seismic activity in and around Ontario, California.
Common Questions about Earthquakes near Ontario
Is Ontario in an earthquake-prone area?
Ontario and the surrounding area 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.
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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: Sep 29, 2026, 12:40 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.