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2022 Eruption

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Geology and History of Mauna Loa

Mauna Loa is the largest active volcano on Earth. Mauna Loa is in the shield-building stage of Hawaiian volcanism, a period when the volcanoes grow most rapidly, adding as much as 95 percent of their ultimate volume.
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Geology and History of Mauna Loa

Mauna Loa is the largest active volcano on Earth. Mauna Loa is in the shield-building stage of Hawaiian volcanism, a period when the volcanoes grow most rapidly, adding as much as 95 percent of their ultimate volume.
Learn More

November 27-December 10, 2022 Eruption of Mauna Loa

Mauna Loa had not erupted since 1984—its longest quiet period in recorded history.
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November 27-December 10, 2022 Eruption of Mauna Loa

Mauna Loa had not erupted since 1984—its longest quiet period in recorded history.
Learn More
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