The small, dark grey ash plume from the November 21, 2017 eruption of Agung in Indonesia. Pusdalops PB BPBD Prov Bali. After weeks of unrest that has waxed and waned, Agung in Indonesia finally produced an explosive eruption today. This blast wasn't anything close to the large blast that some media organizations have been claiming, but rather a relatively small eruption (see below) that was driven by water flashing to steam at the summit crater.
— Ali (@Ali_Di_Bali) November 21, 2017
Drone footage (below) taken not long after this explosive eruption shows the steaming crater. The plume is very white in this footage, suggesting it is mostly steam, lacking a large ash component (and not smoke, as many outlets report. Volcanoes don't produce smoke
.)
Drone footage above Mount Agung at around 18:30 localtime or about 1.5 hours after the initial ash emission. Courtesy of CVGHM @GeologiBadan@KementerianESDMpic.twitter.com/HED5qM3nAg
— MAGMA ...