Hundreds of thousands of Californians endured blackouts on Thursday as the state’s utility companies sought to prevent their equipment from igniting wildfires.

Despite the efforts, more than 10,000 acres were ablaze in Sonoma County, and the state’s largest utility, Pacific Gas & Electric, said it was investigating whether its equipment had been involved.

[Update: California shop owners on how much will PG&E blackouts will cost them.]

No injuries were reported, but the fire forced the evacuation of Geyserville, a town of 1,000 residents 75 miles north of San Francisco. As firefighters tried to contain the blaze, the 12,000 residents of nearby Healdsburg were warned that they might also have to leave.

“It’s what they say is the new norm in California, and really the whole West, with catastrophic wildfires,” said Joe Stewart, a fire captain for the Geyserville Fire Protection District.