Seismologists are closely monitoring ... One" refers to a massive earthquake that could occur along the San Andreas Fault, one of the state's most significant and active fault lines.

Experts have warned that California is overdue for another massive earthquake along the San Andreas. A potential magnitude 8 quake would wreak havoc upon the state's most populated cities ...

Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re most common in Alaska, California, Hawaii, Oregon, Puerto Rico and ...