The Cascadia subduction zone, where the oceanic Juan de Fuca plate descends beneath the overlying North American plate ... that may exceed 9 occur every 200-600 years on the inter-plate boundary, ...

The Cascadia subduction zone could pose a major threat to the West Coast if a high magnitude earthquake were to occur, ...

New research shows that in minutes after the earthquake hits, coastal areas of California, Oregon and Washington could drop ...