For the first time in a generation, lava began flowing from Mauna Loa at the heart of Hawaii’s Big Island late Sunday. No one knows when it will stop, or what, if any, damage it might cause.

March 27 marks the anniversary of the onset of Mauna Loa’s dramatic 1868 eruption ... it is now believed that an ovular section of the central caldera floor had, by that time, collapsed deeper ...

It may be possible to forecast the next eruption of Hawai’i’s Mauna Loa – the world’s largest active volcano – more than two months in advance thanks to a new understanding of what ...