Sinabung in Indonesia Produces Largest Explosion Yet

The towering ash plume from the February 19, 2018 eruption of Sinabung in Indonesia. BNPB. Sinabung has been erupting for almost 5 years now, mostly producing moderate explosions that generate pyroclastic flows. These flows roar down the slopes of the volcano -- sometimes catching people in their paths. On February 19, 2018, the volcano decided to change its tune and unleashed a massive explosion that potentially reached at least 23,000 and possibly to up 55,000 feet (~16.5 kilometers), making it the largest eruption since the volcano became active again in 2013.