Activity continue at Bromo and Sinabung.

Given the RSAM graphics, the activity of Gunung Bromo has increased.
 

Nocturnal filament is reported by Øystein Lund Andersen on December 17, in relation to the high temperature of the gases and ash; it no projection of bombs.
 

On December 18, the Bromo continues to emit an ash plume. As he points out, " During the early morning of 18 December, we noticed that the window of our hotel-room was shaking and making a sound once in a while. Sometimes the shaking made the lamps in the room to flicker. Most likely this shaking was caused by strong tremor from Bromo"
 

The alert level remains at III / Siaga, together with an area prohibited by the VSI and the Bromo Tengger Semeru National Park ... by some who braved remain planted in the caldera of Tengger. The only sites accesible to tourists remain Mt. Pananjakan, Bukit Cinta / Love hill, Bukit Setya Trisula and Coban.
Despite the thin layer of ash covering the crops, farmers are continuing their activities, and shops of the village of Ngadisari remain open.
 

Sources :

- VSI Badan Geologi

- Øystein Lund Andersen Photography - link

In Sinabung, activity continues but at a lower intensity. The explosions remain intermittent and moderate, and block avalanches from the dome are less frequent.