Ijen Crater in Banyuwangi and Bondowoso of East Java activity is rising. And on Wednesday its status raised to Level II on 15 December 2011 as stated by press. In 18 December 2011 its status was raised again to Level III. Based on raised of earthquake, visual and temperature observation at the crater lake, it was raised from normal (level I) to level II starting from 01.00 local time on December 2011. This status affects people living in the vicinity of Ijen crater, visitors, climbers and sulphur miners to be closer than  1 km distance from the crater.

The rise of the activity was started since 8 December 2011 with tremor quake and  77 shallow volcanic quakes. In October 2o11 seismic activity began and then continued in high shallow volcanic earthquake in December. Brown white emissions with a weak pressure rising 50-200 m above the crater on December.