I love watching volcanoes... from a safe distance! Wouldn't really want to live near enough that I'd have to worry about lava, pyro flows, ash fallout (and roof collapse), etc. They sure are awesome to watch when they blow though. I'd love to see/witness Yellowstone go off, but then at the same time, realizing a full blown super volcano like Yellowstone could pretty much be an extinction level event for humans, I guess I can do without that. I've only experienced a couple of earthquakes, and they were mere rumblers, nothing near the "San Andreas" caliber/quality. The first one I was sitting home alone about 15 miles from the Navy base I was stationed at, which was one of two main anti-submarine bases on the east coast at that time. It was also the peak of the cold war and we were routinely tracking Soviet SSBN submarines out in the Atlantic. The fear at that time was pretty real and if they had shot first, that base would have been a priority target. I thought maybe it had happened, but no flash of light, so realized it was a quake. I've always been fascinated by mother nature's wrath and love big storms, hurricanes and tornadoes especially. Of course I don't like the personal loss these things cause, or the loss of life, but they are some impressive to observe.
OK so call me weird, but a nice smaller sized asteroid impact in a non heavily populated area would be pretty cool too. Looking for more than the Tunguska event, Kinda like the one that left the meteor crater in AZ. About a mile across, but less than the one off the Yucatan Peninsula (Chicxulub crater) that caused the extinction of the dinosaurs. Then again, a medium sized one dropped in a certain area of the world might solve a lot of problems... justsayin