Undersea earthquakes and volcanic eruptions displace destructive amounts of water and send it across oceans to flood distant ...

The quake that struck Alaska’s southern coast on Wednesday, July 16 is part of a larger sequence that may continue to unfold ...

Earthquakes occurring away from tectonic plate boundaries can be triggered by the rise and fall of hot material through the Earth's mantle, according to a new study.

The biggest changes to the plate model have been in western North America, which often has the boundary with the Pacific Plate drawn as the San Andreas and Queen Charlotte Faults.

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But do other planets in the solar system have them too?

"Volcanoes form at plate boundaries, and the more plates you have, the more volcanoes you have," Jonny Wu, a geologist at the University of Houston, said in a statement. "Volcanoes also affect ...

These findings are important for the debate over when our planet's plate tectonics began. No one knows exactly when or why the Earth's surface broke into pancake-like slabs that grind and crash ...