March 27 marks the anniversary of the onset of Mauna Loa’s dramatic 1868 eruption, when lava flows from the Southwest Rift ...

March 27 marks the anniversary of the onset of Mauna Loa’s dramatic 1868 eruption, when lava flows from the Southwest Rift Zone severely impacted the Ka‘u district. However, this may not have been the ...

The collapse volume at the summit nearly matched the effused lava volume on the rift zone. In this regard, 1868 was a little ...

The Associated Press In this aerial photo released by the U.S. Geological Survey, the Mauna Loa volcano is seen erupting from vents on the Northeast Rift Zone on the Big Island of Hawaii on Monday.

Mauna Loa is comprised of a main summit caldera called Moku‘āweoweo and two rift zones to the northeast and southwest. The two rift zones are historically very active. They have been recorded ...