Investigators are considering an array of possible ignition sources for the huge fires that have killed at least at least 10 people and destroyed thousands of homes and businesses in the Los Angeles area.
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In hilly, upscale Pacific Palisades, home to Hollywood stars like Jamie Lee Curtis and Billy Crystal who lost houses in the fire, officials have placed the origin of the wind-whipped blaze behind a home on Piedra Morada Drive, which sits above a densely wooded arroyo.
While lightning is the most common source of fires in the US, according to the National Fire Protection Association, investigators were able to rule that out quickly. There were no reports of lightning in the Palisades area or the terrain around the Eaton fire, which started in east Los Angeles County and has also destroyed hundreds of homes.
The next two most common causes: fires intentionally set, and those sparked by utility lines.
John Lentini, owner of Scientific Fire Analysis in Florida, who has investigated large fires in California including the Oakland Hills fire in 1991, said the size and scope of the blaze doesn’t change the approach to finding out what caused it.
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“This was once a small fire,” Lentini said. “People will focus on where the fire started, determine the origin and look around the origin and determine the cause.”