A magnitude 7.7 earthquake off the coast of Java, Indonesia, on 17 July triggered a twometer high tsunami that killed at least 339 people, injured 600, and destroyed many structures, according to the U.S. Geological Survey.

This destruction highlights the fact that, more than 18 months after the 26 December 2004 Indian Ocean tsunami, the region still lacks a comprehensive warning system. However, by 2008 systems could be operational for Indonesia and the rest of the Indian Ocean region.