On Thursday almost five million people were without power in parts of Mexico, Arizona, and California. The blackout was caused by human error and will have many residents in this area without power a day or more. At a substation in Arizona the outage was caused by an employee who was carrying out a procedure. This blackout knocked out water supplies in part of Tijuana and some parts of San Diego County, sent some elderly residents to various emergency rooms, and even snarled traffic on Southern California freeways.
San Diego apparently was the hardest hit by the blackout as it caused traffic to come to a complete standstill as the street lights quit, and San Diego International had to cancel all outbound flights. San Diego’s firefighters even had to rescue seventy people from stalled elevators. The schools were also closed until Monday because there was no guarantee that the utility company would have the lights back on in the classrooms.
The procedure in Arizona first caused the failure of the high power line that was supplying electricity to Southern California and then caused a domino effect across the Southwest. A double blow was issued to Southern California because this procedure also led to a blockage at the San Onofre nuclear energy plant. This nuclear energy plant is the second major source of power to the area of San Diego.
In the San Diego area there were one point four million people affected along with three point five million people in Baja, California and there were also fifty thousand people in Yuma, Arizona without power. A spokesperson for the Arizona utility com that caused the blackout said that there were two failures. One was human failure and the second was system failure.