Merapi Volcano, positioned on the border between Central Java Province and Special Region of Yogyakarta, is the most active volcano in Indonesia. Based on historical data, Merapi has erupted regularly since 1006. From its first eruption
Merapi has exploded more than 80 times. In the 17th century Merapi was produce one large explosion, resulting more than 3,000 people dead [Hadikusumo, 1970]. Latest eruption of Merapi was on June 2006 produced pyroclastic flows, or “awan panas” in Indonesian, and killed 2 people. They were buried in a bunker when trying to escape from the danger.