Los Angeles, Oct. 30 -- Electrical equipment caused two Southern California wildfires - one that killed three people and destroyed more than 1,600 homes last year - and another still smoldering in the well-heeled hills of Los Angeles, where thousands of people including Arnold Schwarzenegger fled homes in the dark, utilities said Tuesday.

The two findings add more examples of electric lines sparking major wildfires as utilities in California increasingly resort to drastic power outages as a precaution to prevent devastating blazes.

A fire that broke out early Monday morning near the J. Paul Getty Museum was sparked after high winds blew a eucalyptus branch onto an electric line that caused it to arc, ignite dry grass and destroy a dozen...