4 km SE of Piru, CaliforniaSep 30, 2026, 03:00
Nearby significant earthquake112 km from Rancho Cucamonga10.7 km deep184 felt reports
Latest Earthquakes near Rancho Cucamonga
Live map and archive of seismic activity in and around Rancho Cucamonga, California.
Updated: 06:47
Recent earthquakes that may have affected Rancho Cucamonga
Rancho Cucamonga Activity Report
M1.5+Largest Measured Events
Filtered Statistics
Total Events
2
3.5
Largest Magnitude
Hermosa Beach, CA · 7 km WSW
Significant
0
3.5
Most Recent2 DAYS AGO
Hermosa Beach, CA · 7 km WSW
Depth distribution
Shallow-focus 2Intermediate-focus 0Deep-focus 0
Filtered Statistics
2 events
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Latest earthquakes in nearby cities
Live map and archive of seismic activity in and around Rancho Cucamonga, California.
Common Questions about Earthquakes near Rancho Cucamonga
Is Rancho Cucamonga in an earthquake-prone area?
Rancho Cucamonga 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 Rancho Cucamonga?
Use the filters above to check the latest earthquakes near Rancho Cucamonga. 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 Cucamonga?
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 Cucamonga.
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 30, 2026, 06:47 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.