Especially in a major Earthquake zone.
I once paid off a ship in Kagoshima. I had a night in a hotel before flying home and was having breakfast on the top floor of the hotel (about 7 floors up which was tall then for Kagoshima.) I was looking across the harbour as I ate and noticed a big cloud over the mountain opposite which suddenly shot up into the sky at high speed, very peculiar.
I asked the waitress about it and she answered in Japanese broken English, but I did pick up the word Volcano. The mountain was a f****** big volcano.
I was suddenly very aware I was seven floors up.