Let’s see, off the coast of Oregon close to the Cascadia subduction zone, lots of friction going on, a predicted snapback is looming as core samples taken over the last few decades have indicated that every 300 years the subduction zone has a snap back. The last one being January 29th 1700 as recorded/documented by the Japanese when the “Orphan Tsunami” struck their coastline.
It’s overdue, and it’s going to cause quite a bit of catastrophic damage because the area is now very populated.
If the quake happens now, they’ll say it’s because of climate change.