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Zone 1 - Includes summits and rift zones of Kilauea and Mauna Loa volcanoes, where vents have been repeatedly active in historical time. Zone 2 - Areas adjacent to and downslope of zone 1. 15-25% of zone 2 has been covered by lava since 1800, and 25-75% has been covered within the past 750 years.
It was created between 1,000 and 1,500 years ago by a large eruption from Mauna Loa's northeast rift zone, which emptied out a shallow magma chamber beneath the summit and collapsed it into its present form. [29] Additionally, two smaller pit craters lie southwest of the caldera, named Lua Hou (New Pit) and Lua Hohonu (Deep Pit). [23]
This is a list of volcanic eruptions from Mauna Loa, an active shield volcano in the Hawaiian Islands that last erupted in 2022. These eruptions have taken place from the main caldera and fissures along rift zones.
There has been little change to the northeast rift zone eruption of Mauna Loa over the past 24 hours, according to the Hawaiian Volcano Observatory. A lava flow fed ...
Two distinct rift zones are present on the western flank of the volcano, forming a v shape. A third rift zone possibly extended eastward towards the modern day East Molokai Volcano. A collapse occurred around (uncertain) years ago on the eastern/north eastern flank of the volcano and lava flows from East Molokai had filled in the open space ...
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Mauna Loa erupted at 11:30 p.m. local time Sunday (4:30 a.m. ET Monday), the U.S. Geological Survey said. ... Northeast rift zone eruption of Mauna Loa, Hawaii, at 7:15am local time (HST) from a ...
Before 2022, Mauna Loa had last erupted in March 1984, in a 22-day event similarly concentrated in the volcano's Northeast Rift Zone. [6] The 2022 eruption was the volcano's 34th eruption since 1843, when volcanic activity at Mauna Loa began to be continuously recorded, but only the third eruption since 1950.