A 7.7-magnitude undersea earthquake triggered a tsunami that struck the south coast of Java island on 17 Jul 2006. The area around Pangandaran, Ciamis district, was the hardest hit. Other districts that might be affected were Cilacap and Tasikmalaya. Here are some satellite images of the region.
On 26 Dec 2004 00:58:53 UTC (7:58:53 am local time), a magnitude 9.0 earthquake occured off the west coast of northern Sumatra, Indonesia. The epi-centre was located under sea water at 3.32 N 95.85 E. This is the fourth largest earthquake in the world since 1900. The earthquake generated tsunamis which swept across the Indian Ocean within hours. Over 120,000 people lost their lives in this disaster. Areas near to the epicentre in Indonesia, especially Aceh, were devastated by the earthquake and tsunamis. The tsunamis also affected Phuket and surrounding areas in Thailand, Penang in Malaysia, Sri Lanka, India, and places as far as Somalia in Africa
The satellite images of the Tsunami affected areas in this web page were acquired by the Centre for Remote Imaging, Sensing and Processing at the National University of Singapore. They show the effects of the tsunamis on the affected areas in Indonesia, Thailand and island of India.