WHAT WAS INITIALLY THOUGHT TO BE A MAGNITUDE 4.2 QUAKE THIS MORNING ALONG THE BIG SUR COAST HAS BEEN DOWNGRADED TO A MAGNITUDE 3.9 EVENT. THE 4:56 A.M. QUAKE WAS EPI-CENTERED 5 MILES NORTHWEST OF LOPEZ POINT (AND 42 MILES SOUTH OF SALINAS ALONG THE COAST). SO FAR THERE HAVE BEEN NO REPORTS OF DAMAGE OR INJURIES.