Etna, Italy

Every week seems to bring a new eruption from Sicily's Etna. Last weekend saw some more lava fountaining from the New Southeast Crater -- the 12th time this has happened in the last two months! This time, the eruption was quite sudden and generated a 1000 meter lava fountain and accompanying ash plume (see above). This new eruption also generated a lava flow that interacted with snow on the slopes of the volcano to produce small lahars (mudflows) as well. The volcano looks startlingly bimodal in color in this recent NASA Earth Observatory image, with the eastern slopes dominated by new lava flows and the western slopes still covered in snows.

Image: Dr. Boris Behncke / Flickr, taken on April 20, 2013