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.

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

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

Two earthquakes hit the area between Fiji and New Zealand on April 14 morning. The first quake measured 6.5, and the second ...

Off the coast of Hawke’s Bay, a giant slumbers – but could wake at any time. The Hikurangi Subduction Zone is where the Pacific plate drops westward under the Australian plate. It sits just off the ...

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

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 ...

New findings provide a greater understanding of plate subduction ... bottom seismic experiment conducted at an Atlantic subduction zone," said Dr. Catherine Rychert, formerly an Associate ...

Earthquakes. A short video for 11-14 year old pupils, exploring tectonic activity and earthquakes and featuring case studies ...