Source: The Watchers - 1/14/13, By Chillymanjaro

During the night of January 9-10, 2013, vigorous Strombolian activity started within the Bocca Nuova, Etna’s largest summit crater. The source vent is the same that was the site of several episodes of similar activity between July and October 2012.
Featured image: Bocca Nuova at Etna (Credit: Marco Restivo)