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The Hawaiian–Emperor seamount chain is a mostly undersea mountain range in the Pacific Ocean that reaches above sea level in Hawaii.It is composed of the Hawaiian ridge, consisting of the islands of the Hawaiian chain northwest to Kure Atoll, and the Emperor Seamounts: together they form a vast underwater mountain region of islands and intervening seamounts, atolls, shallows, banks and reefs ...
The Hawaiian–Emperor seamount chain. The two straight sections, the Emperor and Hawaiian strands, are separated by a large L-shaped bend at the Northwestern Hawaiian islands. Map of the youngest Hawaiian Islands showing progression in selected erupted lava ages along the island chain (Ma = million years) Map of the Hawaiian Islands and some ...
Geologically, they are the oldest in the Hawaiian-Emperor seamount chain, shaped by volcanic activity and erosion over millions of years. The Northwestern or Leeward Hawaiian Islands include Nihoa (Moku Manu) at 23°03′38″N 161°55′19″W / 23.06056°N 161.92194°W / 23.06056; -161.92194
The islands are exposed peaks of a great undersea mountain range known as the Hawaiian–Emperor seamount chain, formed by volcanic activity over the Hawaiian hotspot. The islands are about 1,860 miles (3,000 km) from the nearest continent and are part of the Polynesia subregion of Oceania.
When scientists investigated a series of earthquakes off Hawaii in 1970, they discovered that Kamaʻehuakanaloa was an active member of the Hawaiian–Emperor seamount chain. Three-dimensional rendering of the seamount. Kamaʻehuakanaloa is built on the seafloor with a slope of about five degrees.
The Hawaiʻi hotspot is a volcanic hotspot located near the namesake Hawaiian Islands, in the northern Pacific Ocean.One of the best known and intensively studied hotspots in the world, [1] [2] the Hawaii plume is responsible for the creation of the Hawaiian–Emperor seamount chain, a 6,200-kilometer (3,900 mi) mostly undersea volcanic mountain range.
Hawaiian-Emperor seamount chain Kaʻala or Mount Kaʻala (pronounced [kəˈʔɐlə] in Hawaiian) is the highest mountain on the island of Oahu , at 1,227 metres (4,026 ft). It is a part of the Waianae Range , an eroded shield volcano on the west side of the island.
Map based on Eakins, Robinson, Kanamatsu, Naka, Smith, Takahashi, & Clague (2003) ... List of volcanoes in the Hawaiian–Emperor seamount chain; Metadata.