It's maybe a couple of miles tall and has volcanoes at the top. You can't see very far in front of you because the light doesn't penetrate that deep in the ... where there are small volcanic ...

Researchers uncover a possible active underwater volcano chain near the Cook Islands, hinting at fresh geological activity.

Scientists said they have seen the first signs of life returning to deep sea mining tracks carved into the abyssal seabed ...

Mount Spurr in Alaska – rising some 3,370 meters or 11,070 feet above sea level ... with the number of small and recent earthquakes in the area now into the thousands. Volcano seismologist ...