The eruptions these days contain little ash. The eruptions occur every 10-30min, and are accompanied by rumbling sounds, that can be heard 1-2 km from the mountain.
Semeru seen from the north, north of the village of Ranu Pani. Photo from UAV. (30th July – 17:43 local time)Semeru eruption plume on 31th July. (15:12 local time)
(15:33 local time)Semeru from Kalimati basecamp.(1th August, 06:16 local time)(06:16)Aerial from UAV (06:21)Aerial from UAV, over the Kalimati basecamp. (06:35)(06:55) The larger eruption-plumes, like this, were accompanied with rumbling sounds.(06:55)(07:35)Lake Ranu Kombolo, 6 km north of Semeru. Ranu Kombolo is said to be a maar. A maar is a volcanic crater that forms when magma contacts groundwater to produce a steam explosion.(11:45) Semeru seen from near Lake Rano Kombolo, on our way to Ranu Pani village.(11:45)The volcanic cones of the Tengger Caldera, with Semeru erupting in the background. Photo at night, but the moon was up, illuminating the landscape. (2th August 2015)(2th August 2015)
