Llaima Volcano had temporarily quieted when the Advanced Land Imager passed overhead on April 16, 2009.
Published Apr 23, 2009
Acquired February 4, 2003, this natural-color image shows Parque Nacional Llullaillaco along the Chile-Argentina border.
Published Oct 9, 2011
Emi Koussi is a high volcano that lies at the south end of the Tibesti Mountains in the central Sahara in northern Chad. The volcano is one of several in the Tibesti massif, and reaches 3415 m in altitude, rising 2.3 kilometers above the surrounding sandstone plains. The volcano is 65 kilometers wide. This view of the Emi Koussi caldera is detailed to the point that it doesn’t include the entire 10-kilometer diameter of the caldera, but reveals individual lava strata within the walls of the summit cliffs. Nested within the main caldera is a smaller crater that contains white salts of a dry lake at its lowest point. Here too, strata are visible in the walls of the smaller crater. The smaller crater is surrounded by a region of darker rocks—a geologically young dome of lava studded with several small circular volcanic vents.
Published Dec 8, 2002
One of the largest known eruptions of the modern geologic period (the Holocene) occurred at Baitoushan Volcano about 1000 A.D. The eruption created the 4.5-kilometer diameter, 850-meter deep summit caldera of the volcano, which is now filled with the waters of Lake Tianchi.
Published May 16, 2005
The high peaks of the Andes form the backbone of South America and the political border between Chile and Argentina. Formed from the subduction of the Nazca Plate under the South American Plate, the south-central Andes also includes several major volcanoes. One of the most active border volcanoes is Volcan Maipo, located just southeast of Santiago, Chile. This image from the International Space Station shows the volcano near the southern hemisphere spring equinox. The lake, just east of Maipo’s peak, is still ice-covered. However, the increasing temperatures of spring are suggested by a muddy-looking streak near the lower left corner. The streak appears to be a landslide or avalanche that flowed westward down a rugged slope, possibly triggered by instability in the snowpack due to snow melt.
Published Oct 18, 2004
Concepción Volcano is one of the tallest and most active of Nicaragua’s volcanoes. The 1,610-meter (5,280-foot), cone-shaped volcano is the northern half of dumbbell-shaped Isla de Ometepe. To the northwest of the crater, a very faint plume (probably steam) creeps like fog down the mountain, blurring the sharp gullies that carve the volcano’s flanks.
Published May 29, 2007
This astronaut photograph highlights two volcanoes located near the southern boundary of the Nazca–South America subduction zone in southern Chile. Dominating the scene is the massive Minchinmávida Volcano at image center. At bottom center is its smaller, but currently active, neighbor Chaitén.
Published Mar 9, 2009
The dry climate around the world's second tallest volcano provides a good habitat for preserving archeological discoveries.
Published Feb 16, 2019
