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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.
Like all Hawaiian volcanoes, Mauna Loa was created as the Pacific tectonic plate moved over the Hawaii hotspot in the Earth's underlying mantle. [10] The Hawaii island volcanoes are the most recent evidence of this process that, over 70 million years, has created the 3,700 mi (6,000 km)-long Hawaiian–Emperor seamount chain. [11]
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.
That being said, historically, "the early stages of a Mauna Loa rift zone eruption can be very dynamic, and the location and advance of lava flows can change rapidly," according to the USGS ...
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 ...
The Mauna Loa eruption occurred in the summit caldera area of the volcano, containing the bulk of lava within the summit area, although lava started flowing downslope in the northeast rift zone ...
Its northern base on the flank of Mauna Loa is 2,100 yd (1,900 m) below sea level, but its southern base is a more substantial 15,600 ft (4,755 m) below the surface. Thus, the summit is 3,054 ft (931 m) above the seafloor as measured from the base of its north flank, but 12,421 ft (3,786 m) high when measured from the base of its southern flank ...
Lava flows from the Mauna Loa eruption moved north towards the Daniel K Inouye Highway, also known as Saddle Road, on Wednesday, November 30, the USGS said.In their latest update, the service said ...