Mount Slamet seen spewing lava and smoke sulfatara black, Wednesday (29/4). Dozens of times a burst of lava visible to a height of 700 meters as far as 1.5 kilometers from the lip of the caldera. In addition, boom and rumbling sounds were also heard to a radius of 20 kilometers from the summit of the mountain with an altitude of 3,428 meters above sea level it. Currently still alert status of Mount Slamet.