New evidence suggests current estimates about tsunami size and how quickly waves make it to shore may be too high and too ...

Seafloor sensors caught a rare slow quake in action. It hints at how Earth's stress is quietly released. For the first time, ...

PORTLAND, Ore. – A new study mapping the Cascadia Subduction Zone is giving scientists clues about the state of the fault line as the Pacific Northwest awaits a potentially catastrophic earthquake.

The Cascadia Subduction Zone has historically produced 8.0 or larger magnitude earthquakes every 400 to 600 years, with the last striking in 1700. This suggests the 'sleeping giant' is poised for ...

It’s linked to a fault line: Scientists first mistook the leak for a cold methane seep – there are at least 1,000 methane seeps in the region. But this seep’s water is much warmer, has a low ...

SPOKANE, Wash. — Earthquakes are not uncommon in Washington, but many people think of them as a westside thing. The most concerning fault line, the Cascadia Subduction Zone, runs along the west ...

Alaska, Hawaii and parts of the mainland America’s West Coast are at risk if an earthquake erupts along the Cascadia subduction zone, a fault stretching from Northern Vancouver Island to Cape ...

“The big one” would come from an earthquake originating in the offshore Cascadia subduction fault. Tobin says offshore faults tend to cause bigger earthquakes and are a larger tsunami risk.

A new study on the Cascadia fault line breaks down the flooding potential of a 9.0 earthquake, calculating the risk of where and how much land could sink in the Pacific Northwest and Northern ...