when did the former hotspot last errupt?
Kīlauea has erupted continuously since 1983
Hawaii hotspot
Kīlauea has erupted continuously since 1983 through Puʻu ʻŌʻō, a minor volcanic cone, which has become an attraction for volcanologists and tourists alike.
where is mauna kea? Hawaii what is it? It is a dormant volcano. Wmeasured from its underwater base, Mauna Kea is the tallest mountain in the world, measuring in height. what is the height of its peak? UNANSWERABLE has it ever been active? Yes, It began as a preshield volcano driven by the Hawaii hotspot around one million years ago, and became exceptionally active during its shield stage until 500,000 years ago. what is a hotspot? The Hawai’i hotspot is a volcanic hotspot located near the namesake Hawaiian Islands, in the northern Pacific Ocean. who was the first person who came up with a theory about the hotspot? John Tuzo Wilson what did his theory say about it? A single, fixed mantle plume builds volcanoes that then, cut off from their source by the movement of the Pacific Plate, become increasingly inactive and eventually erode below sea level over millions of years. has there been any hypothesis made on the same by others? Yes, In 2003, fresh investigations of this irregularity led to the proposal of a mobile hotspot theory, suggesting that hotspots are mobile, not fixed how does the temperature affect the hotspot? The low heat across the Hawaiian Swell indicates that it is not supported by a buoyant crust or upper lithosphere, but is rather propped up by the upwelling hot (and therefore less-dense) mantle plume that causes the surface to rise through a mechanism known as "dynamic topography". have any landslides been caused due to it? Yes, Bathymetric mapping has revealed at least 70 large landslides on the island flanks over in length, and the longest are long and over in volume. and has it caused any damage to anything? These slides have caused massive tsunamis and earthquakes, fractured volcanic massifs, and scattered debris hundreds of miles away from their source.
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Hawaii hotspot [SEP] Volcanic characteristics
Hawaiian volcanoes are characterized by frequent rift eruptions, their large size (thousands of cubic kilometers in volume), and their rough, decentralized shape. Rift zones are a prominent feature on these volcanoes, and account for their seemingly random volcanic structure. The tallest mountain in the Hawaii chain, Mauna Kea, rises above mean sea level. Measured from its base on the seafloor, it is the world's tallest mountain, at ; Mount Everest rises above sea level. Hawaii is surrounded by a myriad of seamounts; however, they were found to be unconnected to the hotspot and its volcanism. Kīlauea has erupted continuously since 1983 through Puʻu ʻŌʻō, a minor volcanic cone, which has become an attraction for volcanologists and tourists alike.