If a volcano erupts at the bottom of the sea, does anybody see it? If that volcano is Axial Seamount, about 300 miles offshore and 1 mile deep, the answer is now: yes.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dWyzqBgn6dE/150501221550.htm
Seafloor sensors record possible eruption of underwater volcano
2 mayo 2015
Volver