The coast of Chile is at risk of "hazardous" tsunami waves after a 7.5 earthquake struck off the south of Argentina, the U.S. has warned. Shane Croucher is a Breaking News Editor based in London, UK.

Pockets of water exist that are so salty they behave more like dense syrup than seawater. These deep, hidden lakes are called ...

An earthquake alert drill has been scheduled for Tuesday morning in Mexico, which will trigger the alarm in 11 states.