But in seriousness, the Cascadia fault up in the...
yup, there’s far more likely to be tectonic activity due to volcanoes in that range like Hood, Rainier, Baker, and of course, St Helens. I think all 4 are actually still considered active? I know Baker is…
Well the Cascadia fault is a subduction fault which means the ocean floor is basically being driven under another plate and thus higher rates of earthquakes, volcanos, mountain-building, etc.
Hood, Rainer, St. Helens, Baker are all active, and so is the Three Sisters one of which (South Sister) was rumored to be active a few years ago, as was St. Helen’s sometime in 2005 though they are all dormant. Still doesn’t erode the possibility that they will erupt one day. There’s also Bachelor (which is also a ski resort), Jefferson, and a few others. Not even going to factor in the ones in California or the rest in Washington state
In fact, Rainer might be the most dangerous of the group considering it’s location and the fact that there have been huge lahars from the build-up of snow and ice on it’s peak.