Update: Acres burned in Riverside County grows to 30 acres, Bluff Fire hits 25% containment

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Updated: 5:33 p.m. July 9

First discovered: 3:46 p.m. July 9

Initial location: Pacific Bluff Street and Brentworth Street, Menifee, Riverside County, Calif.

Fire unit: Cal Fire Riverside Unit

Fire type: Wildfire

Fire name: Bluff Fire

Bluff Fire initially started today at 3:46 p.m. at Pacific Bluff Street and Brentworth Street, Menifee in Riverside County, California.

By Thursday evening, 30 acres of land had been destroyed by it, an increase of 20 acres since the last update. As of Thursday evening, the fire crew succeeded in containing 25% of the fire. At this time, there are no details on the cause of the fire.

Fire containment

What does 25% containment mean?

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

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This story was originally published July 9, 2026 at 4:36 PM.