say eruption could end soon Scientists lowered the alert level for the Mauna Loa volcano on Hawaii's Big Island from a warning to a watch on Saturday and said the mountain's first eruption in ...

Mauna Loa is not far behind with a peak at 13,677 feet above sea level. Mauna Kea is the world's tallest mountain when measured base to peak, as its base extends nearly 20,000 feet below sea level.

There are two active volcanoes in Hawai'i Volcanoes National Park, Mauna Loa and Kilauea, but Kilauea is the real "must-see." A 4,000-foot-tall mountain, Kilauea has been active since Jan. 3 ...