Mt. Hakone, which is less than 50 miles away from Tokyo, has been heating up, and releasing steam. The actual ground around the volcano is also rising, and has risen about 4" in just the last few weeks. This volcano has been inactive for the last 800 or so years; and the last eruption would have been back in the Middle Ages. Volcano experts are saying that the steam and earth movement are likely signs of an impending eruption, and people have been stopped from going into the area. Earlier this year, another volcano in Japan erupted unexpectedly; and many hikers along the side of the mountain were killed; so authorities are not taking any chances with this one. Since it is so close to Tokyo, it would seem like this is a very dangerous situation for the people living that close to the volcano. You can see from this video that it is puffing out a lot of steam, and the trees and vegetation are dead where the steam has been coming out.