What Am I?

What Am I?

I can be very angry sometimes and can cause a lot of damage.You can come on me but beware, you could die. When I do get angry a lot of red can be seen. I am found in a lot of country's but mostly in the water. I make the floor shake so much it shakes the museum and I can't eat anything. What am I?

Guess what I am!
answers in the comments!