The quake struck juts after 7:45 p.m. local time on Monday and was centered around the town of Dublin, according to the USGS.

Cascadia's four segments make it more dangerous than other major fault lines because they have different rock and sediment, ...

The West Coast is ground zero for several fault lines due to the movement of the earth between two major tectonic plates, including the North American plate and the Pacific plate. And while much ...