I dunno. I’m sitting on the Cascadia subduction zone. 5.3’s are pretty common.
I lived on Bainbridge for ten years, from 1999 to 2009, only remember one quake, a pretty good shake that damaged old buildings in Pioneer Square. No biggie for an old Californio like me. 100+ in a short time in Idaho seems like an anomaly to me...but maybe not.
I was sort of waiting for Mt. Ranier to blow; would have had a front row seat, definitely popcorn-worthy. Now, as close as I am to Yellowstone, I console myself by remembering I’ve had a long, interesting and adventure-filled life. .