A newly released NASA satellite image shows an ash plume drifting from Anak Krakatau (also known as Krakatoa), a volcanic island in the Sunda Strait between the islands of Java and Sumatra in Indonesia. It has been intermittently active for the past several decades.
The last significant activity at the volcano occurred in January 2011 when ash was emitted more than 600 m into the air, forcing the evacuation of tens of thousands of residents. A 2km exclusion zone was also put in place for tourists and local fishermen. The volcano also erupted on 29thOctober 2010 leading Indonesian authorities to issue a level 2 alert.