18-Month Investigation Blames Edison Tower for Eaton Fire That Killed 19

Investigators have an answer, and it's the one Southern California Edison basically already admitted to.

The Los Angeles County Fire Department and Cal Fire released a joint report Tuesday concluding that electrical arcing on an out-of-service SCE transmission tower started the Eaton Fire. The blaze tore through Altadena the night of January 7, 2025, killed 19 people, and destroyed more than 9,000 homes and businesses, according to the Associated Press.

The mechanism, per the report cited by the Associated Press: two electrical arcing events happened in rapid succession on the idle tower. Burning material fell to the ground. Within 12 seconds, dry grass and brush ignited below. From there it exploded into what the report calls a "conflagration" that swept through the San Gabriel Mountains, Altadena, Pasadena, Sierra Madre and La Cañada Flintridge.

A Pasadena resident's 911 call, cited in the report, described spotting a "10' x 10' fire at the base of a high-voltage electrical tower" from his rear window that night. That's the spark that grew into a fire covering 22 square miles and taking nearly a month for firefighters to fully extinguish.

Edison already saw this coming

This isn't a surprise to the utility. SCE spokesperson David Eisenhauer told the New York Post the company has "taken our potential role in the start of this fire seriously from the beginning," and said SCE "believes that it is likely that its equipment was associated with the ignition." SCE spokesperson Kathleen Dunleavy gave the Associated Press nearly identical language.

That's a company getting ahead of the finding, not fighting it. Fair enough. But acknowledging "likely" involvement months ago is different from a formal government investigation naming your out-of-service equipment as the definitive cause after 18 months of forensic and metallurgical review.

LA County Fire Chief Anthony Marrone struck a somber note in the report's release: "I recognize that no report or investigation into the Eaton Fire can ease the deep pain and tragedy our residents have endured. While the cause has been determined, our focus remains on assisting our residents to rebuild their homes and livelihoods, and ensuring lessons learned drive meaningful and impactful change in memory of the 19 lives lost."

Edison isn't just taking the blame quietly

What complicates the narrative is SCE's own legal strategy. According to the Associated Press, SCE has filed lawsuits this year claiming Los Angeles County agencies failed to issue timely evacuation warnings to residents in east and west Altadena. Eighteen of the 19 people who died lived in west Altadena.

SCE has also alleged in court filings that water agencies, including Pasadena Water and Power, didn't provide firefighters enough water as the fire spread, leaving crews with limited resources to fight the blaze in its critical early hours. Los Angeles County declined to comment on those filings, per the AP.

Even if Edison's tower started the fire, whether evacuation notices went out fast enough and whether water pressure held up are separate government-competence questions that deserve scrutiny. Blaming the utility for sparking a fire doesn't automatically clear other agencies of failures in the response.

Money already moving

SCE has paid more than $314 million to fire victims through its Wildfire Recovery Compensation Program, according to CBS News. That's before this report even came out; the company set up the fund anticipating exactly this outcome.

The New York Post's coverage and CBS News both note SCE said it was "reviewing" the report Tuesday, standard corporate language for a company that had already conceded the likely cause months earlier. None of the four outlets reviewed here found evidence of any criminal charges filed against Edison or its executives. This is a fire-origin determination, not a criminal or regulatory verdict.

What's unresolved

The report answers what sparked the fire. It doesn't resolve SCE's separate legal claims about evacuation delays and water supply failures, both still pending in court as of this report. It also doesn't establish what, if any, financial or regulatory consequences follow. California's utility regulators and the state legislature have pushed wildfire liability reforms for years precisely because these fires keep tracing back to aging equipment left in service, or in this case, equipment that was supposedly out of service but still capable of arcing.

The Los Angeles Times noted this is a developing story that officials will continue to update. Whether Edison's out-of-service tower should have been de-energized more thoroughly, and whether county evacuation and water systems performed as they should have during a fire that killed 18 people in west Altadena alone, remain open questions for the courts and for whatever policy changes follow.