The alerts, updated by the U.S. State Department as of April 7, classify destinations from Level 1 ("Exercise Normal Precautions") to Level 4 ("Do Not Travel"), with warnings often tied to issues such ...

A fascinating new study reveals that a massive chunk of Earth’s crust, buried deep beneath the Midwest, is slowly pulling ...

Seismic mapping of North America has revealed that an ancient slab of crust buried beneath the Midwest is causing the crust ...

A massive eruption of magma around 135 million years ago may have been the driving force behind the tectonic rift that split ...