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These eruptions have taken place from the main caldera and fissures along rift zones. They are generally fluid ( VEI -0) Hawaiian eruptions but more violent eruptions have occurred throughout Mauna Loa's eruptive history, with the largest recorded explosive eruptions having taken place in the 19th century.
Mauna Loa's most recent eruption began on November 27, 2022, and ended on December 13, 2022. It was the first eruption since 1984. [8] [9] No recent eruptions of the volcano have caused fatalities, but eruptions in 1926 and 1950 destroyed villages, and the city of Hilo is partly built on lava flows from the late 19th century.
By 2010, the Global Volcanism Program of the Smithsonian Institution had cataloged the assignment of a VEI for 7,742 volcanic eruptions that occurred during the Holocene (the last 11,700 years) which account for about 75% of the total known eruptions during the Holocene. Of these 7,742 eruptions, about 49% have a VEI of 2 or lower, and 90% have ...
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 ...
Mauna Loa erupted at 11:30 p.m. local time Sunday (4:30 a.m. ET Monday), the U.S. Geological Survey said. It was the first eruption since 1984, according to its Hawaii Volcano Observatory daily ...
In the U.S. and its territories, there are 161 potentially active volcanoes, including Mauna Loa. According to the U.S. Geological Survey, there are around 1,350 potentially active volcanoes ...
The 2022 eruption of Mauna Loa was an episode of eruptive volcanic activity at Mauna Loa, the world's largest active volcano, located on Hawaiʻi island, Hawaiʻi. Mauna Loa began to erupt shortly before midnight HST on November 27, 2022, when lava flows emerged from fissure vents in Moku‘āweoweo (Mauna Loa's summit caldera ).
Supervolcano – Volcano that has had an eruption with a volcanic explosivity index (VEI) of 8; Trans-Mexican Volcanic Belt – Active volcanic belt that covers central-southern Mexico; Volcanic arc – Chain of volcanoes formed above a subducting plate; Volcanic explosivity index – Predictive Qualitative scale for explosiveness of volcanic ...