Mauna Loa in Hawai'i Erupts for the First Time in Over 40 Years

Mauna Loa started erupting at its Moku‘āweoweo summit caldera in the early morning hours today. Located on the big island of Hawai'i, the massive shield volcano hasn't been active in 38 years. The eruption is following the profile of most Hawaiian-style eruptions, with a fissure opening at the summit with lava fountains and lava flows moving out from the new vent (see above).