December 3, 2014
This Landsat 8 image shows Herbert Island, one of several volcanic islands in the Aleutian chain off Alaska. The stratovolcano at the island’s center rises 4,200 feet (1,280 meters) above the ocean, and the entire island is just 6 miles (10 kilometers) across.
May 28, 2013
Astronauts aboard the International Space Station (ISS) photographed striking views of Pavlof Volcano on May 18, 2013. The oblique perspective from the ISS reveals the ash plume’s 3-D structure, which often is obscured by the traditional nadir views of most remote sensing satellites.