Earth Observations taken by the Expedition 17 Crew
Summary
ISS017-E-009777 (24 June 2008) --- Aeolian Islands, Italy are featured in this image photographed by an Expedition 17 crewmember on the International Space Station. The Aeolian Islands formed from a chain of volcanoes in the Tyrrhenian Sea to the north of the island of Sicily. The islands have been studied by geologists and vulcanologists since the 18th century, and were accorded UNESCO World Heritage Site status in 2000 in recognition of their continuing value to study of volcanic processes. Two types of volcanic eruption, Vulcanian and Strombolian, were defined based on study and observation of geologic processes on the islands of Vulcano and Stromboli (not shown). This detailed view features the island of Lipari and the northern portion of the island of Vulcano. Tan, speckled areas on both islands are urban areas and towns. Lipari is the largest of the Aeolian Islands, and is a popular tourist destination due to its rugged volcanic topography and beaches (several boat wakes are visible in the image around the islands). White pumice beaches and caves are located along the northern and northeastern coastlines of Lipari; black sand beaches derived from lava flows can also be found on the island. The most recent eruptive activity on Lipari took place between approximately 580-729. The island of Vulcano (right) is comprised of two calderas -- large craters formed when explosive eruptions empty a magma chamber, followed by collapse of the overlying material into the newly-formed void -- the Caldera della Fossa to the north and the Caldera del Piano to the south. The volcanic cone of La Fossa, located with the Caldera della Fossa, has been the site of much of the historical eruptive activity on the island. The last eruption on Vulcano Island took place during 1898-1900.
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