The earthquake sent shock waves through Southern California's business community Monday, crippling transportation and communications, damaging factories and idling thousand of workers.
Companies in the San Fernando Valley were hit hardest by the magnitude 6.6 quake, with many firms forced to close because of damage or lack of phones and electricity. Some of the hardest hit:
* Rockwell International Corp.'s Rocketdyne division in Canoga Park, where the firm assembles rocket and space shuttle engines, was shut down after the plant suffered broken water pipes, shattered windows and buckled floor tiles.
Lockheed Corp., with 5,000 Los Angeles-area employees, said it would...