They were drilling off Oregon. What they found could shake the entire West Coast

They were drilling off Oregon. What they found could shake the entire West Coast

Scientists have found evidence that a major Cascadia earthquake could trigger a second quake on the San Andreas Fault. The discovery came from unusual sediment layers formed by underwater landslides recorded over thousands of years. These patterns suggest both fault systems may have ruptured close together in the past. The findings raise new concerns about a potential coast-wide earthquake sequence.