LARGE ENOUGH TO CAUSE SIGNIFICANT DAMAGE. THIS IS A HEAVILY POPULATED AREA, AND IT DID LEAVE MANY PEOPLE RATTLED. THIS MORNING SOUTHERN CALIFORNIA BRACING FOR AFTERSHOCK AFTER AN EARTHQUAKE RATTLED MILLIONS YESTERDAY IN AND AROUND LOS ANGELES. THE 4.4 MAGNITUDE QUAKE HITTING DURING LUNCHTIME NEAR SOUTH PASADENA, KNOCKING ITEMS OFF WALLS AND GIVING THIS WOMAN A SQUARE. >> HONEY, WHAT HAPPENED? DID YOU FEEL THAT? >> Reporter: PEOPLE FELT THE GROUND SHAKING FOR MILES. >> IT WAS A LITTLE INTENSE. I WASN'T EXPECTING THAT. >> Reporter: ON THE COAST, A CAMERA ON THE SANTA MONICA PIER SHAKING ALONG WITH THIS. AN ESPN ANALYST PAUSED HER SHOW. ALTHOUGH NO REPORTS OF SIGNIFICANT DAMAGE OR INJURIES, AT PASADENA CITY HALL, THE QUAKE CAUSING A PIPE TO BREAK, WATER SEEN GUSHING ONE. ONE PERSON RESCUED AFTER BEING TRAPPED IN AN ELEVATOR. AND THIS SCHOOL EVACUATED ON THE FIRST DAY OF CLASSES. >> IS THIS A SIGN OF A BIGGER QUAKE TO COME? >> THERE IS ALSO A CHANCE. WE HAVE A 5% CHANCE IN THE NEXT THREE DAYS WE WILL SEE SOMETHING LARGER FROM THE SAME LOCATION. >> Reporter: IT IS THE SECOND QUAKE TO HIT THE REGION IN THE PAST WEEK. LAST WEDNESDAY, A MAGNITUDE 5.2 SHOOK BAKERSFIELD, INCLUDING DOZENS OF AFTERSHOCKS. THIS WEEK LEADING TO THE STRONGEST SHAKING FELT IN EAST L.A. IN YEARS. >> THIS IS A REMINDER THAT LOS ANGELES IS EARTHQUAKE CITY, BUT WE ARE ALSO THE BEST PREPARED CITY. >> Reporter: SO FAR THERE HAS BEEN A FEW AFTERSHOCKS BUT NOT SIGNIFICANT. IT IS A GOOD REMINDER TO ALL OF US IN EARTHQUAKE PRONE REGIONS TO BE