Mount Merapi is an active volcano located on the border of Yogyakarta in central Java and Indonesia. This is the most active volcano in Indonesia and it has been continuously active since 1548. Even when it does not explode, it still smoke a lot of amounts and it appears up to a height of 2 miles in the sky. Around 200,000 people live in less than 4 miles of it. If this volcano has suddenly assumed a large form then it will cause a huge catastrophe.