Explore how North America is changing as its deep cratonic root thins and pieces are dripping into the Earth's mantle.

An area in the Pacific Northwest lies on a 'subduction' zone where a tectonic plate slides underneath the North American plate. Subduction zones produce the world's largest earthquakes.

you can get a good estimate of an earthquake location using a map, a ruler, a pencil, and a compass for drawing circles on the map. Here are examples of a seismograms from different places in North ...

An earthquake with a magnitude 3.9 rattled Malibu and the surrounding areas Sunday night, the United States Geological Survey. The quake struck at around 8:17 p.m. a little more than 7 miles west ...

The Palmetto State, which lies on the interior part of the North American tectonic plate, has experienced hundreds of earthquakes in the past 15 years despite not being near a plate boundary.

A rescue team in Mandalay, the city closest to the earthquake's epicentre, tells the BBC they "are digging people out with ...