Update: 10% containment achieved for Echo Fire in San Diego County

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Updated: 5:43 a.m. June 21

First discovered: 8 hours ago, 9:34 p.m. June 20

Initial location: Proctor Valley Road, Jamul, San Diego County, Calif.

Fire unit: Cal Fire San Diego Unit

Fire type: Wildfire

Fire name: Echo Fire

Echo Fire initially started 9:34 p.m. June 20 on Proctor Valley Road, Jamul in San Diego County, California.

After being active for eight hours, it has burned 25 acres. By Sunday morning, a crew of 100 firefighters succeeded in containing 10% of the fire. Investigations into its cause are still ongoing.

13 engines, three water tenders, two dozers and two hand crews are all continuing to fight the fire. According to Cal Fire, "Numerous firefighting air tankers from throughout the State are flying fire suppression missions as conditions allow."

Fire containment

What does 10% containment mean?

The percentage indicates how much of the fire perimeter has been surrounded by a control line. In this case, it means that 10% of the wildfire is contained from spreading, while 90% 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 June 21, 2026 at 6:08 AM.