Californians on heightened earthquake alert
Residents in Southern California are under an earthquake advisory.
There’ve been more than 100 small quakes and temblors earlier this week, increasing the chances of a major quake near the San Andreas Fault.
Scientists say residents should be on heightened alert through Tuesday.
They estimate the possibility of a major 7.0 quake is as high as one in 100 and as low as one in 3,000.