Ibu , Indonesia : the level of activity remains at Waspada (Level II).

Ibu , Indonesia : the level of activity remains at Waspada (Level II).

Evaluation : Visual data show that in the period from 1 January 2016 until March 7, 2016, emission column series have fluctuated but were stable at a maximum height of 500 m. A gray / black color in the column shows that volcanic materials…