January 25, 2015
Photographer: Carlos Di Nallo
Shown above is the Volcan Copahue photographed near Caviahue, Argentina. This 9,833 ft (2,997 m) stratovolcano has been simmering of late. Prior to this recent period of activity its last notable eruption occurred in December 2012. Its last major eruption was in 2000. The bottom photo shows steam, resulting from hydrothermal activity, rising above one its crater lakes, located just 2.5 mi (4 km) from the summit. Photo taken on September 15, 2014.
Photo details: Top - Camera Model: Canon EOS REBEL T3i; Lens: 70-300mm; Focal Length: 214mm; Aperture: ƒ/5.0; Exposure Time: 0.0004 s (1/2500); ISO equiv: 100; Software: Adobe Photoshop CC 2014 (Windows). Bottom - same except: Focal Length: 119mm; Aperture: ƒ/8.0; Exposure Time: 0.0013 s (1/800); ISO equiv: 200.