Recently Mount Merapi in Indonesia erupted with avalanches.
It lies on the subduction zone, on the border between the province of Central Java and the Special Region of Yogyakarta.
The eruption blanketed several villages with the falling ash.
Merapi is the most active volcano of Indonesia and has erupted repeatedly.
Volcanoes occur due to Weak Earth Surface, Plate Tectonics, Ocean floor spreading, Magma crystallization.