Tuesday, 25 March 2014

The Nakalele blowhole in northwest Maui, Hawaii, USA:



The Nakalele blowhole in northwest Maui, Hawaii, USA:


The island of Maui is the second-largest of the Hawaiian Islands at 727.2 square miles and is the 17th largest island in the United States.Maui is part of the State of Hawaiʻi and is the largest of Maui County's four islands, bigger than Molokaʻi, Lānaʻi, and unpopulated Kahoʻolawe. In 2010, Maui had a population of 144,444, third-highest of the Hawaiian Islands, behind that of Oʻahu and Hawaiʻi Island. Kahului is the largest census-designated place on the island with a population of 26,337 as of 2010 and is the commercial and financial hub of the island.Wailuku is the seat of Maui County and is the third-largest CDP as of 2010. Other significant places include Kīhei; Lahaina; Makawao; Pāʻia; Kula; Haʻikū; and Hāna.Maui's diverse landscapes are the result of a unique combination of geology, topography, and climate. Each volcanic cone in the chain of the Hawaiian Islands is built of dark, iron-rich/quartz-poor rocks, which poured out of thousands of vents as highly fluid lava, over a period of millions of years. Several of the volcanoes were close enough to each other that lava flows on their flanks overlapped one another, merging into a single island. Maui is such a "volcanic doublet," formed from two shield volcanoes that overlapped one another to form an isthmus between them.The older, western volcano has been eroded considerably and is cut by numerous drainages, forming the peaks of the West Maui Mountains (in Hawaiian, Mauna Kahalawai). Puʻu Kukui is the highest of the peaks at 5,788 feet. The larger, younger volcano to the east, Haleakalā, rises to more than 10,000 feet above sea level, and measures 5 miles from seafloor to summit, making it one of the world's tallest mountains.The eastern flanks of both volcanoes are cut by deeply incised valleys and steep-sided ravines that run downslope to the rocky, windswept shoreline. The valley-like Isthmus of Maui that separates the two volcanic masses was formed by sandy erosional deposits.


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