A Cascadia Subduction Zone earthquake could cause long-lasting changes to Washington’s landscape, coastline and floodplain, a ...

The website for USGS said the earthquake originated shortly after 9 a.m. EDT about 12 miles from Greenback, Tennessee.

Washington state has seen several recent earthquakes ranging from small tremors near Tacoma and Vashon Island to larger ...

Researchers have long warned that a stretch of coast in Oregon and Washington state is capable of producing an incredibly powerful earthquake that could kill thousands, shattering critical bridges, ...

A long-feared monster earthquake off the coast of California, Oregon and Washington could cause some areas to sink by more ...

A major earthquake may strike the Pacific Northwest region resulting in sinking the coastal land by almost seven feet, ...

When an earthquake rips along the Cascadia Subduction Zone fault, much of the U.S. West Coast could shake violently for five ...

One of the Pacific Ocean’s lesser-known volcanoes will blow its vent in the coming months, causing 10,000 earthquakes in one day. Here’s what scientists are saying.

Axial Seamount sits at a geological crossroads, fueling some of the most intense undersea action in the region.

The quake’s epicenter was located near Des Moines, Washington, and was one of the strongest in the region’s recorded history ...

Researchers have long warned that a stretch of coast in Oregon and Washington state is capable of producing an incredibly powerful earthquake that could kill thousands, shattering critical ...