On a related note:

Indonesia's Sinabung volcano erupts

"Sinabung, a 2,460-metre (8,070-foot) volcano, was dormant for centuries before roaring back to life in 2010 when an eruption killed two people.

After another period of inactivity, it erupted again in 2013 and has remained highly active since.

The following year an eruption killed at least 16 people, while seven died in a 2016 blast."