An earthquake with a magnitude of 5.1 struck near La Habra, California Friday (3-28) night, and was followed by dozens of aftershocks.
The bigger quake was originally reported as magnitude 5.4 and struck at 9:09 p.m. PT. The first temblor hit about an hour before that.
Caltech seismologists said the 5.1-earthquake was at a depth of around one mile and was followed by at least 100 aftershocks, including a magnitude-3.4 that hit Saturday morning.
The main shock was preceded by two foreshocks registering magnitudes 3.6 and 2.1, scientists said. The aftershocks had many residents on edge.
There were no immediate reports of significant damage or major injuries. But some viewers did send in photos of toppled furniture, as well as broken glass and mirrors.
Videos and pictures from many stores also showed a huge mess after items flew off shelves and isles were littered with debris.