It's a matter of when -- not if -- a significant earthquake will shake the Pacific Northwest, and a new study says some areas ...

If the once-every-500-year Cascadia Subduction Zone earthquake doesn’t do enough damage to the coastal Northwest on its own, frequent and widespread flooding from rising seas that follows will take ca ...

A big earthquake along the Cascadia fault could cause Washington's coastal lands to suddenly drop nearly 7 feet, instantly ...

More than 17,000 people in Oregon, Washington and California could almost instantly be living in a floodplain, the ...

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

The Axiel Seamount is one of a chain of undersea volcanoes along the Juan de Fuca Ridge, which runs along Oregon and Alaska.

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

A 7.4 magnitude earthquake struck off the southern coasts of Chile and Argentina on Friday, the United States Geological Survey said. Chilean authorities issued an ...

A 7.4 magnitude earthquake strikes off the southern coasts of Chile and Argentina, the US Geological Survey says.

The next major Pacific Northwest earthquake could cause coastal land to sink by up to 6.5 feet in a matter of minutes, a new ...