Two months after Susilo Bambang Yudhoyono assumed office , the 2004 Indian Ocean earthquake and tsunami struck in the province of Aceh and many other countries along the Indian Ocean coastline . Three months later , an aftershock of the earthquake triggered a tsunami which occurred in Nias Island . In 2006 , Mount Merapi erupted and this was followed by an earthquake that struck Yogyakarta
aftershock
2005 Nias–Simeulue earthquake
Post-Suharto era