Eruzione del vulcano Hudson in Cile

In this photo provided by the regional government of Aysen, plumes of smoke and ash rise from the Hudson volcano in the region of Aysen, Chile, Thursday Oct. 27, 2011. The Southern Andean Volcano Observatory says seismic activity related to the volcano increased starting early Tuesday night. The Hudson volcano lies 995 miles (1,600 kilometers) south of Chile’s capital, Santiago. It last erupted in August 1991, causing millions in damages to local farms and killing an estimated 1.5 million sheep. Chile has about 3,000 volcanos, 500 of which are considered geologically active. (AP Photo/Aysen Regional Government)