Mauna Loa, Hawaii's Biggest Volcano, is Currently in an Active Phase

The Big Island of Hawaii's Mauna Loa, the biggest active volcano in the world, is exhibiting potentially alarming symptoms: the number of earthquakes is rising, and the area around the volcano's top seems to be swollen. Although the volcano is not currently erupting, the National Park Service has announced the closure of Mauna Loa's summit area within Hawaii Volcanoes National Park out of an abundance of caution.