Mauna Loa Summit Cabin Reopens
Sep 22, 2023
Mauna Loa GPS Campaign Underway To Track Deformation
May 30, 2023
Red Hill Cabin On Mauna Loa Volcano Reopens
Mar 20, 2023
Mauna Loa Observatory “Back in Action”
Mar 16, 2023
Mauna Loa is the largest volcano on planet Earth. Its summit – the caldera of which is named Moku`aweoweo – extends 4 km above sea level. Below the water, its long submarine flanks descend another 5 km to the sea floor, which in turn is depressed by Mauna Loa’s great mass another 8 km. Scientists say this makes the volcano’s summit about 56,000 feet above its base. The massive volcano covers half of the Island of Hawai`i. Mauna Loa is among Earth’s most active volcanoes, having erupted 33 times since its first well-documented historical eruption in 1843. Its most recent eruption was in 1984. [USGS HVO]
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