Scientists are sounding the alarm after a recent series of earthquakes raised concerns about the possibility of a major ...

Slow-moving slides are common around the world, and especially in California, where several hundred have been mapped in ...

Bad news: The 'big one' might be an even bigger one.

California has been rocked by at least nine earthquakes since Thursday, raising fears that the "Big One" could be near.

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.