Lava is shooting 100 feet to 200 feet (30 to 60 meters) into the air as Hawaii's Mauna Loa, the world's largest active volcano, erupts for the first time in nearly 40 years.
In this aerial photo released by the U.S. Geological Survey, the Mauna Loa volcano is seen erupting from vents on the Northeast Rift Zone on the Big Island of Hawaii, Monday, Nov. 28, 2022. Hawaii's Mauna Loa, the world's largest active volcano, began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities.
It sits immediately north of Kilauea volcano, which is well-known for a 2018 eruption that destroyed 700 homes and sent rivers of lava spreading across farms and into the ocean. Mauna Loa’s volume is estimated at least 18,000 square miles , making it the world’s largest volcano when measured from the ocean floor to its summit.at its summit after a series of large earthquakes. It then spread to vents that formed in a rift zone where the mountain is splitting apart and it’s easier for magma to emerge.
Historically, each Mauna Loa eruption has lasted a few weeks. Hon expects the current eruption to follow this pattern.Mauna Loa is not exploding like Washington state's Mount St. Helens did in 1980, killing 57 people.The magma in Mount St. Helens tends to be stickier and traps more gas, making it much more likely to explode when it rises. It's of a variety called composite volcanoes, which form concave cones.
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