Island of Java

The island of Java (8.0S, 112.0E) illustrates a tectonic feature called an island arc. An island arc is a set of volcanoes that grow above a subduction zone. The volcanoes grow from the sea floor to many thousands of feet above sea level. In the case of Java the volcanoes have coalesced to form a large single island. Seen in this view are nearly a dozen active stratovolcanoes. Merapi volcano is at the bottom of the photo. Deep blue water of the Indian Ocean to the south contrasts to the sediment laden waters of the Java Sea to the north.

Photo source: Shuttle Images at the Johnson Space Center in Houston, Texas.



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