 Most portions of the south Java coast saw runup heights of , but evidence on the island of Nusa Kambangan indicated that a peak surge measuring had occurred there, suggesting to researchers that the possibility of a submarine landslide had contributed to the magnitude of the tsunami in that area.A portion of the southwest and south-central Java coast was affected by the tsunami, and resulted in around 600 fatalities, with a high concentration in Pangandaran.Two thousand kilometers (1,200 mi) to the southeast at the Steep Point area of western Australia, a runup of was measured, which was comparable to a similar runup in northern Oman from the 2004 Indian Ocean earthquake and tsunami, though in that case it was at a much greater distance of .