Supershear earthquakes are more common than previously believed, some scientists say — carrying potentially profound risk for ...

A major earthquake hasn't struck any of California's biggest cities in more than three decades, but experts and officials say the so-called "Big One" is a matter of when, not if. And the risk is far ...

When the Sylmar Earthquake brought down concrete apartment houses, 52 people were killed. Sixteen lost their lives when wooden, “soft story” buildings collapsed during the Northridge quake. Today, LA ...