Short Hills, NJ
Postcard From Oahu
Photograph - Photograph
The island of Oahu was formed by two volcanoes, the Waianae Volcano in the west and the Koolau Volcano in the east. The Waianae Volcano formed the western third of Oahu and the Koolau Volcano formed the eastern two thirds of the island.
The Koolau Volcano began forming a few million years after the Waianae Volcano, forming a separate island a few miles to the east of Waianae. The two volcanoes continued erupting until they gradually filled the ocean between them with land and became one island. After the Waianae Volcano became dormant lava flows from the Koolau volcano formed the Schofield Plateau between them. Cinder cones, tuff rings and spatter cones from the Koolau Volcano formed some of Oahu's most well-known landmarks including Diamond Head Crater, Hanauma Bay, Koko Head, Koko Crater, Punchbowl Crater, and Mount Tantalus.
June 11th, 2013
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