A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating earthquake risk at the Cascadia subduction zone.

What appears to be such a pleasant meeting-place of the well-known rifts, in the Northern part of California, is proving to ...

Researchers discovered new undersea faults on the Pacific plate, some of which are thousands of meters below the surface of the ocean and hundreds of kilometers long. Credit: NOAA/NASA GOES Project A ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

Invisible earthquakes are revealing a hidden tectonic puzzle beneath California’s most dangerous fault zone.

SINGAPORE (Reuters) -The 8.8 magnitude quake off Russia that triggered tsunami warnings across the Pacific occurred on what is known as a "megathrust fault", where the denser Pacific Plate is sliding ...

The map highlights in yellow the zones of the Pacific Plate that are being pulled apart by the sinking tectonic plate along the Pacific Ring of Fire. TORONTO, ON – New research led by a team of ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The Mendocino Triple ...