A long-feared monster earthquake off the coast of California, Oregon and Washington could cause some areas to sink by more than 6 feet, dramatically heightening the risk of flooding.

The next great earthquake isn't the only threat to the Pacific Northwest. A powerful earthquake, combined with rising sea levels, could significantly increase flood risks in the Pacific Northwest, impacting thousands of residents and properties in northern California,

A major earthquake along a West Coast fault could have catastrophic consequences across coastal Washington, Oregon and northern California. Running offshore from northern California to British Columbia,