An investigation by the Orange County Fire Authority found the fire was caused by high winds blowing sparks from three exposed high voltage power lines onto the nearby vegetation, officials said.
To prevent future fire hazards, Laguna Beach Mayor Sue Kempf and Mayor Pro Tem Bob Whalen called on utility provider Southern California Edison to move its power lines underground in Laguna Beach and along Laguna Canyon Road.
About 85 percent of the city falls under what CalFire calls very high fire hazard severity zones, Whalen said, adding that he and other city officials have been pushing for mandating underground power lines through the California Public Utilities Commission and the state Legislature.
Diane Castro, a spokeswoman for the utility, told The Epoch Times that though there were circuits in the affected area, there was no circuit activity nor damaged wire at the time of the fire.
Edison has since filed a report with the state utility commission and launched its own investigation, she said.
“We know wildfires have a significant impact on the communities we serve and have been working to reduce the potential for wildfires through grid hardening, which includes installing covered conductor and targeted undergrounding of electrical lines,” she said.
Orange County’s last major fire was the Coastal fire in Laguna Niguel in May, which reached 200 acres and destroyed over 20 homes.
Authorities have not determined a cause for it, but Edison reported “circuit activity” at the time of the fire.
Laguna Beach’s last major fire was in 1993, leading to the loss of 441 structures, and scorching 14,000 acres.
The estimated cost for the projects is $168 million, of which $82 million goes into cable undergrounding, according to the city.
