A hidden chunk of an ancient tectonic plate is stuck to the Pacific Ocean floor and sliding under North America, complicating ...

A hidden shard of ancient crust has been detected where California’s San Andreas system collides with the Cascadia subduction ...

About 150 million years ago, a massive tectonic mega-plate stretched across the Earth, spanning roughly a quarter of the size of the Pacific Ocean. Its jagged contours ran all the way through the ...

For millions of years, Earth’s moving plates have sculpted continents, carved oceans, and built massive mountain ranges. Yet some of these giant structures vanished deep into the mantle, hidden from ...

Along coastal California, the possibility of earthquakes and landslides are commonly prefaced by the phrase, 'not if, but when.' This precarious reality is now a bit more predictable thanks to ...