About two weeks after Earth’s largest active volcano began erupting, Hawaii’s Mauna Loa has gone quiet, one of the most closely watched volcanoes in the world. Yet significant questions remain about what influences when it erupts and when it calms.
That uncertainty extends to other hazardous volcanoes as well, prompting volcanologists to suggest that observations of the Mauna Loa eruption could help inform predictions of eruptions elsewhere.. It finally happened in late November.
Hon said about 200 million to 250 million cubic meters of lava flowed from Mauna Loa, which means “long mountain” in Hawaiian, over 12 days, a larger-than-usual amount of lava flow that reflects the abnormally long period since its last eruption., it did not otherwise cause any damage. The lava flow stopped more than a mile and a half from the Daniel K. Inouye Highway, a busy road that serves as a shortcut between communities on the eastern and western coasts of the Big Island.
Video taken Nov. 28 shows the extent of lava flow from Hawaii's Mauna Loa after it erupted one day earlier. in 2018, which destroyed hundreds of homes in the Puna district of eastern Hawaii and caused a massive collapse in the volcano’s caldera. A smaller eruption began at the volcano in September 2021 and had continued through Mauna Loa’s eruption, which began Nov. 27.But volcanologists believe the latest Kilauea eruption stopped sometime between Dec. 6 and Dec.
Hon said researchers will dig into observations of both volcanoes over the next year to find what they can learn about any relationship between them. Both are shield volcanoes, named for their wide and gradually sloping profile, and are fueled by a hot spot, or an area in the middle of a tectonic plate where Earth’s mantle has an outlet to the planet’s surface.
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