Snow cover highlights the calderas and volcanic cones that form the northern and southern ends of Onekotan Island, part of the Kuril Island arc.
Published Jan 24, 2011
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
Volcanic activity may soon fuse a newly formed island to its neighbor Nishino-shima.
Published Dec 24, 2013
Hunga Tonga-Hunga Ha'apai is likely to persist for years, maybe decades.
Published Dec 11, 2017
This astronaut photograph shows the southern end of Paramushir Island after a snowfall. Four volcanic centers are brightly lit on their western slopes and deeply shadowed to the east.
Published Jul 12, 2010
Acquired June 11,2010, this natural-color image shows apparent steam filling the caldera of Sarychev Peak.
Published Jun 11, 2010
Simushir is a deserted, 5-mile-wide volcanic island in the Kuril Islands chain, half way between northern Japan and the Kamchatka Peninsula of Russia. Four volcanoes—Milne, Prevo, Urataman, and Zavaritski—have built cones tall enough to rise above the green forest. The remaining remnant of Zavaritski Volcano is a caldera, formed when a volcano collapses into its emptied magma chamber.
Published Sep 17, 2007
Off the tip of Urup Island, the difference between sea ice and island can be hard to identify.
Published Apr 19, 2010
One of Alaska’s Islands of the Four Mountains, this classic stratovolcano stands quietly next to a more active neighbor.
Published Nov 23, 2014
Deception Island is one of the only places in the world where ships can sail directly into the center of an active volcano.
Published Jan 18, 2020
A pair of before-and-after images shows how the June 2009 eruption of Sarychev Peak Volcano transformed Matua Island.
Published Jul 5, 2009
One of the largest volcanic eruptions in the past 10,000 years occurred in approximately 1620 BC on the volcanic island of Santorini in the Aegean Sea. This astronaut photograph illustrates the center of Santorini Volcano, located approximately 118 kilometers to the north of Crete.
Published Jun 30, 2008
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