Supervolcano: All Fall Down by Harry Turtledove was pretty good, if you care for the story of the slow-motion collapse of the United States of America* after the worst geological event in recorded history (the eruption of the Yellowstone caldera); particularly as seen through the eyes of a not-particularly-super-heroic, fairly standard American family. There are a bunch of folks who don’t like that sort of thing; then again, there are people who didn’t like Cloverfield. I don’t judge.
Anyway, that was what I was doing this afternoon.
*Plus, oh, right, the rest of the planet.