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.

A major earthquake may strike the Pacific Northwest region resulting in sinking the coastal land by almost seven feet, forcing people to face severe flooding in the area, as per a recent study. The lead author suggests the disaster could be "on the scale of" what happened in 2004 in Sumatra and in 2011 in Japan.