The volcano Uturuncu, located in the Central Andes mountains, has seemingly risen from the dead. While the volcano has not erupted in more than 250,000 years, it has recently shown signs of activity ...

Today, 30 miles south of Quito, Cotopaxi—a volcano that first erupted in 1534, but has been quiet since the early 1940s until a few recent months of unrest—spewed plumes of ash and vapor. Though the ...

Click on the image to see a larger version. Dissected with lava flow and pyroclastic deposit layering along with magmatic dikes exposed. The original flow features are rarely preserved and the volcano ...

We have created radar interferograms imaging about 900 of the approximately 1,100 catalogued volcanic edifices in the central Andes 2 (Fig. 1). Included in our study are several silicic calderas and ...