However, both seismic zones have the potential for larger earthquakes ... For example, the 1886 Charleston, South Carolina, earthquake had several foreshocks in the days before.

Americans have long lived in fear of the 'Big One' - an earthquake so enormous it would devastate the West Coast. The harrowing images of Thailand and Myanmar on Friday morning after a 7.7 ...

The temblor started 8.3 miles deep, immediately south of the Elsinore fault zone — one of the busiest seismic zones in California ... San Diego County to the northern end of the Santa Ana ...