A flare-off at the Chevron oil refinery in El Segundo, California, was seen for miles on Sept. 17.
The department then realized that it was a controlled burn, said El Segundo Fire Department Battalion Chief Breck Slover. He said the refinery lost power and initiated the flare-off for safety reasons.
“It’s a common occurrence, but this happened to be a pretty big one,” he told the LA Times.
A number of people across Los Angeles, including the airport, said they could see it.
Other details about the flare off are not clear.
It adds: “Transportation fuels–gasoline, jet and diesel–are the primary products refined from the crude oil. We are responsible caretakers of our land and the environment, we operate our own electricity, steam, and water treatment facilities, and even maintain one of the only two remaining preserves in the world for the endangered El Segundo Blue Butterfly.”
The facility is the largest oil refinery on the U.S. West Coast, producing more than 274,000 barrels of crude oil each day.
El Segundo is a city located in Los Angeles County, California with a population 16,654.