Months of aftershocks could follow big California earthquake

A crack is seen in a gas station's driveway in the aftermath of an earthquake Saturday in Trona, Calif. (AP Photo/Marcio Jose Sanchez)

RIDGECREST, Calif. — Officials in Southern California expressed relief Saturday that damage and injuries weren’t worse after the largest earthquake the region has seen in nearly 20 years, while voicing concerns about the possibility of major aftershocks in the days and even months to come.