A new study warns of a potential 1,000-foot mega-tsunami striking the U.S. West Coast within 50 years. Triggered by a major ...

California has dozens of earthquakes every day. Most are below 3.0 magnitude, so small that they aren’t felt.

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say.

Unlike smaller tsunamis, which may only produce waves a few feet high, mega tsunamis are on a completely different scale.

A tsunami like this would wipe out big swaths of coastal cities like Seattle and Portland, and threaten lives of millions of ...

The volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only discovered its existence in the 1980s.

Scientists are warning that a 300-metre-tall “mega tsunami” could potentially wipe a large chunk of America off the map – if ...

Alaska, Hawaii and areas along the mainland West Coast would be at risk if an earthquake erupts along the Cascadia subduction ...

A new study on the Cascadia fault line breaks down the flooding potential of a 9.0 earthquake, calculating the risk of where ...

Could a monster earthquake sink a portion of Northern California? A new study calculates the risk of where and how much land ...

California has experienced multiple earthquakes in the last two minutes in an area being closely monitored for a major quake.