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.

A fault off the Pacific coast could devastate Washington, Oregon and Northern California with a major earthquake and tsunami. Researchers mapped it comprehensively for the first time.

A magnitude 4.0 earthquake was recorded off the southern Oregon coast Tuesday, four days after a 4.4 quake was detected in the same area, the U.S Geological Survey reported. It occurred shortly ...

January 26 marked the 325th anniversary of the last Cascadia subduction zone earthquake -- a magnitude 9 quake that sent a tsunami to Japan in the year 1700.

The U.S. Geological Survey (USGS) and the Pacific Northwest Seismic Network reported a magnitude 6.0 earthquake struck off the Oregon coast Wednesday afternoon. The quake hit at 1:15 p.m. The ...

Scientists are warning that a 1,000-foot-tall “mega tsunami” could potentially wipe a large chunk of America off the map – if a strong enough earthquake hits a specific active fault line ...

An earthquake shook off the Oregon coast Wednesday afternoon. The earthquake struck in the Pacific Ocean, more than 170 miles west of Bandon, Oregon at 1:15 p.m. local time, according to the U.S ...

As part of a worldwide effort, the annual Great Oregon ShakeOut took place Thursday morning to encourage people to focus on earthquake preparedness. The ShakeOut occurs on the third Thursday of ...