The Aeolian Islands formed from a chain of volcanoes in the Tyrrhenian Sea north of the island of Sicily. Geologists and volcanologists have studied the islands since the eighteenth century, and the United Nations Educational, Scientific, and Cultural Organization (UNESCO) declared them a World Heritage Site in 2000 because of their value to the study of volcanic processes.
Published Sep 1, 2008The Canary Islands, a group of volcanic islands, lie just off the west coast of Morocco in the Atlantic Ocean; at the northwest end of the chain is Isla de la Palma. This astronaut photograph highlights volcanic landforms on the southern portion of Isla de la Palma.
Published Jun 16, 2008Volcanic activity may soon fuse a newly formed island to its neighbor Nishino-shima.
Published Dec 24, 2013Lighthouses and sandstone formations draw visitors to the shores of Lake Superior.
Published Aug 28, 2016In one frame International Space Station astronauts were able to capture the evolution of fringing reefs to atolls. As with the Hawaiian Islands, these volcanic hot spot islands become progressively older to the northwest. As these islands move away from their magma sources they erode and subside.
Published Feb 16, 2003The Whitsunday Islands are a collection of some 74 islands sandwiched between the Australian mainland and the outer atolls of the Great Barrier Reef.
Published Jan 2, 2010Acquired October 2, 2002, this natural-color image shows islands off the coast of Croatia, in the Adriatic Sea.
Published Apr 17, 2011Penguins, seals, and scientists are among the residents of a remote archipelago in the southern Indian Ocean.
Published Dec 28, 2016A new island is forming in the Red Sea. Satellite imagery indicates an ongoing eruption in the Zubair Group of the coast of Yemen is largely above water.
Published Jan 9, 2012