To see evidence of the Columbia River’s ancient past, you might not need to visit the river at all. In a roadcut just south of Granger, Yakima County, 10 million-year-old evidence is in plain view.

Coastal communities from northern California to British Columbia live atop the Cascadia Subduction Zone, which spans about ...

A major fault located in Utah, USA, called the Wasatch Fault, is worrying scientists. It could cause larger earthquakes in ...