If and when a Cascadia Subduction Zone earthquake hits the Portland region, soil liquefaction could dramatically worsen the damage, leading buildings to tilt, roads to buckle and utility lines to ...

A terrifying new study warns that the US Pacific Coast could face a 1,000-foot mega-tsunami triggered by a massive earthquake along the Cascadia Subduction Zone. Stretching from Northern California to ...

My regular readers are going to need some context and backstory to what motivated writing this series of posts. It's a three-part series -- here is Part 2 and Part 3. I recently had an exchange with ...

Most new state-owned buildings will need to be earthquake-proof, and by 2060, all buildings owned or leased by the state for executive branch agencies will need to make earthquake-safety upgrades or ...

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The magnitude 6.5 earthquake off the coast of Northern California Thursday morning occurred on a fault called the Mendocino Transform, not the more dangerous Cascadia Subduction Zone. But ...

Our planet's lithosphere is broken into several tectonic plates. Their configuration is ever-shifting, as supercontinents are assembled and broken up, and oceans form, grow, and then start to close in ...

Discover the countries with the most active volcanoes in the world, including Indonesia, Japan, Chile, Russia, and the United ...

The big one is coming. We all know that. We also know the big one might turn out to be the very big one. The 700-mile-long Cascadia subduction zone that's just off the coast of California, Oregon and ...

A budding subduction zone offshore of Spain heralds the start of a new cycle that will one day pull the Atlantic Ocean seafloor into the bowels of the Earth, a new study suggests. Understanding how ...