Here’s the science behind scary headlines about the Pacific Northwest sinking into the sea due to a major earthquake

A new study warns that a megathrust earthquake along the Cascadia Subduction Zone could cause coastal land to sink permanently.

The Cascadia Subduction Zone, a major fault that runs offshore from Northern California to British Columbia, is best known for putting the coast in danger of large earthquakes and tsunamis. A new study sounds another alarm: A big earthquake on the fault could cause land along the coast to sink permanently,