Fast forward to 2025, and there have been only three eruptions of Mauna Loa in the past 75 years since 1950: 1975, 1984, and ...

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Many residents remember Mauna Loa — the largest active volcano on Earth — roaring awake after decades of slumber with a dynamic summit and Northeast Rift Zone (NERZ) eruption in late 2022.

Spectators watch the lava flow down the mountain from the Mauna Loa eruption, Tuesday, Nov. 29, 2022, near Hilo, Hawaii. Credit: AP/Marco Garcia The last time Mauna Loa erupted was in 1984.

Before 1984, Mauna Loa was estimated to have erupted approximately every six years; the 38-year gap between then and this year’s eruption bookends the volcano’s longest known period of quiescence.

More than half of the world’s critical mineral resources formed in ancient volcanic systems. When exploring for mineral ...

March 27 marks the anniversary of the onset of Mauna Loa’s dramatic 1868 eruption, when lava flows from the Southwest Rift Zone severely impacted the Ka‘u district. However, this may not have ...

From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a complicated history of disaster and ...

FILE - Spectators watch the lava flow down the mountain from the Mauna Loa eruption, Tuesday, Nov. 29, 2022, near Hilo, Hawaii. (AP Photo/Marco Garcia, File) Photo Gallery ...

The last time Mauna Loa erupted was in 1984. Most of the U.S. volcanoes that scientists consider to be active are found in Hawaii, Alaska and the West Coast.

The last time Mauna Loa erupted was in 1984. Most of the U.S. volcanoes that scientists consider to be active are found in Hawaii, Alaska and the West Coast.