Earth's crust today has a surprisingly similar composition to the planet's first outer shell, or "protocrust," new research ...

New findings provide a greater understanding of plate subduction, or how tectonic plates slide beneath one another. This recycling of surface materials and volatile elements deep into the Earth's ...

Scientists discovered Earth's first crust had continental chemical signatures. This challenges beliefs about when these ...

New research reveals a surprising link between the ancient tectonic history of oceanic plates and their fate as they subduct ...

GREENWATER, Wash. — A magnitude 3.8 earthquake struck western Washington Sunday morning, according to the U.S. Geological ...

Newly published research has revealed that compositional rock anomalies within oceanic plates caused by ancient tectonics ...

This hidden geological layer, located between 254 and 410 miles (410 and 660 kilometers) beneath the Earth’s surface, covers ...

Geologists have made certain assumptions about how the crust making up our planet's earliest surface formed, but a new study ...

Japan faces an unsettling prospect as experts warn of an impending megaquake that could devastate the nation. With an 80% chance of a magnitude 9 earthquake striking within the next 30 years, the ...

Deep beneath the surface of our planet, from the Himalayas to East Africa and from the Atlantic seafloor to the Indian Ocean, ...

A magnitude 6.8 earthquake that rocked the bottom of the South Island struck in a seismic environment poorly understood by scientists – but which poses a major tsunami hazard. The 2.43pm quake hit ...