This is a wild place. If you’re into that sort of thing (I am), look on You Tube for multiple volcanic eruptions, Kamchatka. The one I’m thinking of was a helicopter flying over.
Wiki has this page about Kamchatka earthquakes
https://en.wikipedia.org/wiki/Kamchatka_earthquakes
I came one course away from completing a BS degree in geology. What I was most interested in was earth history (landscape evolution), fossils, and plate tectonics, as opposed to more practical (money making) fields such as petrology or hydrology.