One of the main things I'm worried about are the extremely big volcanos (so-called supervolcanos) starting to act up lately.

Some might see this as a paranoid behavior, but as it comes down to pure facts, I believe a lot of the mysterious booming sounds, that have been noticed and recorded all around the world lately, are more or less related to the tectonic plate movements. Such things cannot be explained by anything other than actively shifting masses of Earth's molten parts, causing the crust to crack from place to place.

Such things can happen surprisingly "out of sight", since we aren't actively looking for the kind of trouble we are facing. It's one of those problems, that scientists have to had inventing "ways to look around the corner, without looking around the corner" for. Some of the modern equipment, as the ground penetrating radar, have given us tools to figure out more closely, what is going on, but still... What happens in the near future is pretty much anybody's guess.