January 26 marked the 325th anniversary since the last earthquake struck the Cascadia Subduction Zone. Centuries later, the ancient quake has left clues for scientists to prepare for the next one.

The U.S. Tsunami Warning System had also issued advisories for Puerto Rico and the Virgin Islands following the quake, which was later canceled. It was unclear if there was any movement or damage ...

The quake, which occurred around 6:23 p.m. ET ... the U.S. Tsunami Warning System issued a tsunami warning for Puerto Rico and the Virgin Islands, both of which are U.S. territories, adding ...