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Like all Hawaiian volcanoes, Mauna Loa was created as the Pacific tectonic plate moved over the Hawaii hotspot in the Earth's underlying mantle. [10] The Hawaii island volcanoes are the most recent evidence of this process that, over 70 million years, has created the 3,700 mi (6,000 km)-long Hawaiian–Emperor seamount chain. [11]
Mauna Loa is the classic example, with a slope of 4°-6°. (The relation between slope and viscosity falls under the topic of angle of repose . [ 12 ] ) A composite volcano or stratovolcano has a more steeply rising cone (33°-40°), [ 13 ] because of the higher viscosity of the emitted material, and eruptions are more violent and less frequent ...
West Molokai Volcano, sometimes called Mauna Loa for the census-designated place, is an extinct shield volcano comprising the western half of Molokai island in the U.S. state of Hawaii. Geology [ edit ]
Mauna Loa is spewing sulfur dioxide and other volcanic gases. 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 ...
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 ...
Ninole Hills. The Ninole Hills, also known as the Ninole Volcanic Series, are steep eroded hills of shield basalts on the south side of the Island of Hawaii.Recent data suggests that these hills are either the remnants of large escarpments that pre-date the Mauna Loa volcano (the largest active volcano in the world), or uplifted blocks from the oldest parts of the Mauna Loa fault system.
The Mauna Loa summit, cabins and high-elevation areas have been closed since early October when the summit first began "experiencing heightened unrest." Mauna Loa Observatory, located just outside ...
Mauna Loa is a large shield volcano. Its last eruption was in 2022 and it is part of the Hawaiian–Emperor seamount chain. Bowie Seamount is a dormant submarine volcano and part of the Kodiak-Bowie Seamount chain. Axial Seamount is the youngest seamount of the Cobb–Eickelberg Seamount chain. Its last eruption was in 2015.