Update: Volcano Fire in Riverside County at nearly full containment

The creation of this content included the use of AI based on templates created, reviewed and edited by journalists in the newsroom. Read more on our AI policy here.

Updated: 7:08 a.m. July 13

First discovered: 6 days ago, 2:52 p.m. July 7

Initial location: Via Volcano and Tenaja Road, unincorporated Murrieta (La Cresta), Riverside County, Calif.

Fire unit: Cal Fire Riverside Unit

Fire type: Wildfire

Fire name: Volcano Fire

Volcano Fire initially started 2:52 p.m. July 7 at Via Volcano and Tenaja Road, unincorporated Murrieta (La Cresta) in Riverside County, California.

By Monday morning, 138 acres of land had been burnt by it. As of Monday morning, the fire crew effectively contained 95% of the fire. At present, there are no details on the cause of the fire.

Fire containment

What does it mean for a fire to be 95% contained?

The percentage indicates how much of the fire perimeter has been surrounded by a control line. In this case, it means that 95% of the wildfire is contained from spreading, while 5% is still uncontrolled.

Containment is part of a larger plan for managing a wildfire. It is normally expressed as a percentage and it refers to how much of the fire perimeter has been surrounded/enclosed by a control line that firefighters create. The containment percentage indicates a certain level of control, but it doesn't always correlate to safety level. Also, it's important to note that containment doesn't mean a fire is out.

How is containment measured?

The incident's central command constantly receives progress reports from firefighters on the ground. As the fireline is constructed, inspected or reinforced, mappers record those details to adjust the containment percentage. The percentage tells the public how much of the fire perimeter is believed to not go beyond the control lines.

Source: Cal Fire

United Robots Sacramento

This story was originally published July 13, 2026 at 7:22 AM.