Asia News Network
The worst-case scenario would be applied if the evacuation zone reaches between 7.5 kilometres and 10km from the crater. Currently, the evacuation zone is still between 5 and 7km on the southeast slope of the volcano.
"No activity is allowed on this side of the volcano. It has to be free of any activity," BNPB spokesperson Sutopo Purwo Nugroho told The Jakarta Post on Saturday.
He said this particular part of the volcano was particularly vulnerable to disaster as it was the lane for the volcano's pyroclastic flows.
He added that there were already 60 pyroclastic flows running from the crater of Mt. Sinabung, stretching to a distance of between 2 and 5 km down the slope of the volcano. He also said that the volume of the pyroclastic flows was increasing every day.