Update: Rock Fire in Los Angeles County - containment reaches 25%

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: 12:59 p.m. June 15

First discovered: Less than an hour ago, 12:23 p.m. June 15

Initial location: 190th ST cross of West of Ave. C, Los Angeles County, Calif.

Fire unit: LA County Fire Department

Fire type: Wildfire

Fire name: Rock Fire

Rock Fire initially started today at 12:23 p.m. at 190th ST cross of West of Ave. C in Los Angeles County, California.

After being active for less than an hour, it has burned 95 acres. By Monday noon, the fire crew effectively contained 25% of the wildfire. The cause of it is still under investigation.

See live video from the area:

Https://cameras.alertcalifornia.org/?id=Axis-PortalRidge1

Fire containment

What does it mean for a fire to be 25% contained?

The percentage indicates how much of the fire perimeter has been surrounded by a control line. In this case, it means that 25% of the wildfire is contained from spreading, while 75% 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 June 15, 2026 at 11:59 AM.