Pyrite Fire containment at 20% as evacuation warnings remain in Jurupa Valley

The Pyrite Fire began on September 5, 2025, near Pyrite Street and Granite Hill Drive in Jurupa Valley. Cal Fire reported the fire reached 425 acres with 15 per cent containment at 12:32 p.m. on September 6. By 9:57 p.m. the same day, the incident had expanded to 521 acres with 20 per cent containment.

Evacuation warnings

Cal Fire confirmed that evacuation warnings remain in effect for zones JUR-0017, JUR-0018, JUR-0019, and JUR-0031. No mandatory evacuation orders are active as of September 7.

Also read: Jurupa Valley Pyrite Fire forces evacuations, grows to 200 acres with zero containment

Firefighting resources

According to Cal Fire, 297 personnel are assigned to the Pyrite Fire. Resources include 40 engines, 8 hand crews, 2 helicopters, 2 water tenders, and multiple air tankers. A lane closure remains in effect for the #2 southbound lane on Sierra Avenue to allow fire suppression access.

Safety status

Cal Fire stated that no injuries or structural damage have been reported as of September 7, 2025.

How the fire started and what is it

The Pyrite Fire is among several incidents affecting Riverside County during California’s peak wildfire season. It began near Pyrite Street and Granite Hill Drive in Jurupa Valley, an area where residential neighborhoods border brush-covered hillsides and transportation corridors. Dry vegetation and high heat contributed to the rapid spread.

Also read: Pilgrimage route cut as Spanish wildfires spread to Picos de Europa mountains

Jurupa Valley has faced wildfire threats in past years due to its proximity to the Santa Ana River bottom and a mix of urban and wildland terrain. Like other California wildfires, the Pyrite Fire highlights ongoing challenges in Southern California as prolonged drought and heat create elevated fire risks across the region.