Landsat caught a rare glimpse of the third-largest Aleutian Island.
Published Oct 20, 2017
Arcing southwestward from Alaska like the tail of a kite, the Aleutian Islands are a string of active and dormant volcanoes fed by magma created by the collision of the Pacific Plate with the North American Plate. In the northeast part of the range, a cluster of summits known as the Islands of the Four Mountains is home to Cleveland Volcano, one of the Aleutians’ most frequently active volcanoes.
Published Sep 2, 2007
Semisopochnoi is the “Island of the Seven Mountains, ” or more precisely in Russian: “having seven hills.” This uninhabited volcanic island is also an important nesting area for maritime birds of the North Pacific.
Published Dec 29, 2010
Hunga Tonga-Hunga Ha'apai is likely to persist for years, maybe decades.
Published Dec 11, 2017
Four volcanoes double as islands in Alaska’s Aleutian chain.
Published Dec 16, 2013
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, 2008
In the western Pacific Ocean, a new volcanic island that formed in the shadow of Nishino-shima has merged with it. The island has doubled in size as the eruption continues.
Published Apr 4, 2014
Attu Island is so far west, it’s actually in the Eastern Hemisphere. It is the westernmost of Alaska’s Aleutian Islands, even farther west than the Hawaiian Islands.
Published Jul 5, 2006
Volcanic activity may soon fuse a newly formed island to its neighbor Nishino-shima.
Published Dec 24, 2013
Nishinoshima spews a plume of ash and gas, part of an ongoing eruption that continues to increase the size of the small island.
Published Mar 5, 2015
ISS flight engineer Jeff Williams was the first to witness and then report an eruption at this Alaskan volcano in 2006.
Published May 25, 2006
An image from the remote South Sandwich Islands shows how volcanic emissions can create clouds, while the islands themselves deform those clouds.
Published Jun 23, 2012
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