>> KRISTEN WELKER HOSTS MEET THE PRESS, EVERY SUNDAY ON NBC. SOUTHERN CALIFORNIA. >> THE QUAKE WAS CENTERED JUST NORTHEAST OF DOWNTOWN LOS ANGELES, NBC NEWS CORRESPONDENT DANA GRIFFIN JOINS US NOW FROM >>> WELCOME BACK. WE ARE FOLLOWING BREAKING NEWS. AN EARTHQUAKE HAS JUST RATTLED SOUTHERN CALIFORNIA. >> IT WAS CENTERED JUST NORTH OF DOWNTOWN LOS ANGELES. DANA GRIFFIN JOINS US FROM CALIFORNIA. WHAT ELSE DO WE KNOW AT THIS MOMENT? ANY REPORTS OF DAMAGE OR INJURIES? >> Reporter: NOT THAT WE KNOW OF BUT IT WAS A PRETTY GOOD ONE THAT A LOT OF PEOPLE FELT. 4.2 MAGNITUDE QUAKE. WE WERE SITTING HERE IN THE LOS ANGELES BUREAU, WE COULD FEEL THE RUMBLE. A LOT OF PEOPLE STOOD UP. IT ALMOST FELT LIKE, MANY PEOPLE WERE WONDERING, IS THIS WHAT WE THOUGHT IT WAS? BECAUSE IT WAS SO QUICK. USUALLY THEY LAST A LITTLE LONGER BUT YOU FELT THE RUMBLE, YOU COULD SEE THE LIGHTS SHAKE AND THEN EVERYTHING STOPPED. WE ARE NOTICING THAT SOME SCHOOLS STARTED SENDING KIDS OUT OF THEIR CLASSROOMS ONTO A LARGE FIELD JUST IN CASE BECAUSE THIS COULD'VE JUST BEEN ONE OF MANY TO COME. LOCAL FIRE DEPARTMENTS NOW OUT CHECKING LOCAL FREEWAYS AND CHECKING SOME OF THOSE BUILDINGS. A LOT OF THEM HAVE ALREADY BEEN SHORED UP, JUST TO REINFORCE THE PROTECTION BECAUSE IT'S BEEN KNOWN FOR A A WHILE, THAT CALIFORNIA HAS BEEN OVERDUE FOR THE BIG ONE, SO THEY CALL, SO, LIKE THE MAGA QUAKES. WE HAVE NOT EXPERIENCED ONE LIKE THAT IN SO