Earth Observatory Blog

Submitted on 13 Jun 2016 by:

Sinabung volcano in Sumatra, Indonesia, has been almost continuously erupting in the last three years. It has been on the highest alert level since 2013. 

Most of the eruptions on Mount Sinabung have been small. These eruptions vary between lava flows and dome extrusions that accumulate on the volcanic crater, and include explosions with ash plumes that are lower than 3 kilometres (km) in height.

The most common activity on the volcano are the pyroclastic flows that are generated by the gravitational collapse of the dome rocks that have gathered on the summit. The travel distance of these pyroclastic flows range from 2 km to 5 km. As such, since 2014, the exclusion zones were appropriately implemented up to 7 km of the south (S) sector and 6 km southeast-east (SE-E) of...