20110908-111220.jpg

AP Photo

(CNN) — Authorities worked Thursday to restore power after a blackout in parts of southern California, Arizona and Mexico on Thursday affected more than 1 million customers and caused widespread traffic jams.

San Diego Gas & Electric said all of its 1.4 million customers were without power.

The cause of the outage was a power line break on a feeder line in Arizona, said San Diego Police Department spokeswoman Lt. Andra Brown. The department was working on generator power, 911 calls were being answered and officers from the day shift and traffic units were kept on overtime to respond to the power outage, she said.

The power line break “caused our line from AZ and from the north of our region to both trip off,” the utility posted on its Twitter account.

“Think of the system as linked by springs, when one part goes out the rest are affected,” another Twitter post from the utility said.

Power outages in California stretched Thursday from San Clemente to the state’s border with Mexico, a San Diego County spokesman told CNN.

“We don’t have an estimated restoration time,” SDG&E said on its website. “The power could be out through the night and into tomorrow.”

The cause of the outage was a power line break on a feeder line in Arizona, said San Diego Police Department spokeswoman Lt. Andra Brown. The department was working on generator power, 911 calls were being answered and officers from the day shift and traffic units were kept on overtime to respond to the power outage, she said.

The power line break “caused our line from AZ and from the north of our region to both trip off,” the utility posted on its Twitter account.

“Think of the system as linked by springs, when one part goes out the rest are affected,” another Twitter post from the utility said.

Power outages in California stretched Thursday from San Clemente to the state’s border with Mexico, a San Diego County spokesman told CNN.

“We don’t have an estimated restoration time,” SDG&E said on its website. “The power could be out through the night and into tomorrow.”

The cause of the outage was a power line break on a feeder line in Arizona, said San Diego Police Department spokeswoman Lt. Andra Brown. The department was working on generator power, 911 calls were being answered and officers from the day shift and traffic units were kept on overtime to respond to the power outage, she said.

The power line break “caused our line from AZ and from the north of our region to both trip off,” the utility posted on its Twitter account.

“Think of the system as linked by springs, when one part goes out the rest are affected,” another Twitter post from the utility said.

Power outages in California stretched Thursday from San Clemente to the state’s border with Mexico, a San Diego County spokesman told CNN.

“We don’t have an estimated restoration time,” SDG&E said on its website. “The power could be out through the night and into tomorrow.”

« »