Probe Blames SoCal Edison Tower Arcing For Deadly Eaton Fire
Los Angeles County Fire and Cal Fire say electrical arcing on an out-of-service Southern California Edison transmission tower ignited the Eaton Fire in Altadena on Jan. 7, 2025, a blaze that killed 19 people.[1]
The joint report says the fire destroyed more than 9,400 buildings, burned about 22 square miles and took nearly a month to extinguish, with full containment taking more than two weeks.[1] Investigators found two arcing events on the out-of-service tower ignited dry brush in roughly 12 seconds.[2] The report also says Southern California Edison was responsible for maintaining and operating its electrical lines and equipment in a manner meant to minimize catastrophic wildfire risk.[2] Southern California Edison said it has received the report, is reviewing it and had previously acknowledged its equipment was likely associated with the ignition.[2] The utility has also filed lawsuits saying county agencies failed to send timely evacuation warnings to parts of Altadena and that water suppliers did not provide enough water; Los Angeles County declined to comment.[2]
The Los Angeles County Fire Department publicly released the joint report on Tuesday, Aug. 4, 2026.[1] County officials said the investigation took 18 months and involved outside experts before reaching its conclusion.[1] A caller to 911 described seeing a roughly 10-by-10-foot fire at the base of a high-voltage tower across a canyon from his Pasadena home on the morning the blaze began.[2] The report was released as the Eaton Fire is recalled alongside the Palisades Fire, which burned concurrently and killed 12 people; the accused Palisades arsonist faces a retrial in fall 2026 after a June mistrial.[2]
Southern California Edison says it is reviewing the report while contesting some local agencies' actions through litigation.[2]
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📌 Key Facts
- A joint Los Angeles County Fire and Cal Fire investigation concluded two electrical arcing events on an out-of-service Southern California Edison tower ignited dry brush in about 12 seconds and started the Eaton Fire on January 7, 2025 (Southern California Edison tower).
- The report says Southern California Edison was responsible for maintaining and operating its electrical lines and equipment in a manner meant to minimize catastrophic wildfire risk, explicitly linking those maintenance duties to the ignition cause (Southern California Edison).
- The blaze killed 19 people, devastated the community of Altadena, destroyed more than 9,400 buildings, burned about 22 square miles and took nearly a month to extinguish, with full containment taking more than two weeks (Altadena).
- Southern California Edison spokesperson Kathleen Dunleavy said the company has received the report, is reviewing it, and reiterated that SCE had previously acknowledged its equipment was likely associated with the ignition (Kathleen Dunleavy).
- SoCal Edison has filed lawsuits alleging Los Angeles County agencies failed to send timely evacuation warnings to east and west Altadena residents and that water agencies, including Pasadena Water and Power, did not provide enough water as the fire spread; Los Angeles County declined to comment on the filings (SoCal Edison).
- A 911 call from a Pasadena resident on January 7, 2025 described a roughly 10‑by‑10‑foot fire at the base of a high‑voltage electrical tower across a canyon from his home (Pasadena resident).
- The Eaton Fire burned concurrently with the Palisades Fire, which killed 12 people and destroyed more than 6,800 structures; the accused Palisades arsonist faces a retrial in fall 2026 after a June mistrial (Palisades Fire).
- On Tuesday, August 4, 2026, the Los Angeles County Fire Department publicly released its joint report with Cal Fire concluding that the Eaton Fire was ignited by electrical sparks from an out-of-service Southern California Edison transmission tower (Los Angeles County Fire Department).
- County fire officials said the investigation took 18 months and involved working with outside experts before reaching the conclusion about the transmission tower’s role in starting the Eaton Fire (investigation).
📰 Source Timeline (3)
Follow how coverage of this story developed over time
- On Tuesday, August 4, 2026, the Los Angeles County Fire Department publicly released its joint report with Cal Fire concluding that the Eaton Fire was ignited by electrical sparks from an out-of-service Southern California Edison transmission tower.
- The article specifies that the blaze devastated the community of Altadena in Los Angeles County, killing 19 people and destroying more than 9,400 buildings.
- County fire officials said the investigation took 18 months and involved working with outside experts before reaching the conclusion about the tower’s role in starting the fire.
- The PBS/Associated Press piece confirms Los Angeles County Fire and Cal Fire's joint investigation found two electrical arcing events on an out-of-service Southern California Edison tower caused the Eaton Fire, igniting dry brush within about 12 seconds on January 7, 2025.
- The report states the utility was responsible for maintaining and operating its electrical lines and equipment in a manner that would minimize catastrophic wildfire risk, explicitly linking maintenance duties to the ignition cause.
- Officials specify the blaze killed 19 people, destroyed or damaged more than 9,000 homes and businesses, burned 22 square miles, and took nearly a month to extinguish, with full containment taking more than two weeks.
- Southern California Edison spokesperson Kathleen Dunleavy says the company has received the report, is reviewing it, and reiterates that SCE previously acknowledged it was likely its equipment was associated with the ignition of the Eaton Fire.
- The article adds that SoCal Edison has filed lawsuits claiming Los Angeles County agencies failed to send timely evacuation warnings to east and west Altadena residents and that water agencies, including Pasadena Water and Power, did not provide enough water as the fire spread; Los Angeles County declined to comment on these filings.
- The report includes a 911 witness account from a Pasadena resident who called on January 7, 2025, describing a 10-foot by 10-foot fire at the base of a high-voltage electrical tower across a canyon from his home.
- The story notes the Eaton Fire burned concurrently with the Palisades Fire, which killed 12 people and destroyed over 6,800 structures in Pacific Palisades, and that the accused Palisades arsonist faces a retrial in fall 2026 after a June mistrial.