Though the explosive and most visible eruptive activity seems to have subsided, lava is still flowing above and below ground at the largest volcano in the Galapagos Islands.
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.
The symmetrical cone of Kanaga volcano stands out on the northern corner of Kanaga Island, located in the central part of Alaska’s Aleutian archipelago. Kanaga last erupted in 1994 and is well known for its active fumaroles and hot springs (located, in this image, by fine steam plumes on the northeast flank of the volcano). A small lake to the southeast of the cone is situated on the floor of a larger more ancient volcanic caldera. The crew of the international space station acquired this image late in the day of August 13, 2002. Note how the late summer sun accentuates the terrain features like the volcanic flows that radiate down from the volcano’s peak, and the steep cliffs along the western coastline.