This video excerpt from NOVA: "Deadliest Earthquakes" shows how Earth’s crust is made up of rocky slabs, called plates, and how those plates are constantly moving. As molten rock rises from Earth's ...

A deep earthquake in Chile surprised scientists by using heat to grow stronger far underground and cause serious surface ...

— James Webb, Mineral Point, Wis. A Chuck DeMets, professor of geophysics at the University of Wisconsin-Madison: Most earthquakes occur when a geological fault, a fracture within the Earth’s crust, ...

One of the strongest partnerships we have as emergency managers is with the science community. Without them we could not understand the many hazards that we have and what we need to do to prepare for ...

A 3.7 magnitude earthquake just north of Haliimaile late Friday night was likely caused by the bending and cracking of an oceanic plate, according to the U.S. Geological Survey. Jefferson Chang, a ...