M3.4 earthquake on San Andreas fault zone near Cabazon felt across pass

An M3.4 earthquake struck 10 km north-northeast of Cabazon, California on April 26, 2026 at 8:44 AM PDT (15:44:34 UTC). USGS placed the epicenter in Riverside County at a depth of 12.8 kilometers, about 2.5 km from the mapped trace of the San Andreas fault zone (San Bernardino Mountains section).

The event drew 373 "Did You Feel It?" reports submitted to USGS, with a community-reported intensity (CDI) of 3.9. ShakeMap modeled a maximum instrumental intensity (MMI) of 3.5. Both values are consistent with weak-to-light shaking felt across the San Gorgonio Pass corridor.

At a depth of 12.8 km, the event sits in the mid-crustal range. USGS assigned a significance score of 328 on its internal 0–1000 scale.

Riverside County has a population of approximately 2,280,000. USGS PAGER did not produce a population-exposure estimate for this event.

USGS catalog data shows 8 other M3.4+ earthquakes within 20 km of this epicenter in the past 10 years, suggesting events of this size occur about once every 1.2 years at this location.

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Event data

• Magnitude: M3.4 (Ml)
• Depth: 12.84 km
• Time: 2026-04-26 08:44 AM PDT (15:44:34 UTC)
• Coordinates: 34.0005°N, -116.7510°W
• County: Riverside
• Nearest mapped fault: San Andreas fault zone (San Bernardino Mountains section), 2.5 km
• USGS event page: https://earthquake.usgs.gov/earthquakes/eventpage/ci41234575