Sunda Trench is considered to be part of the Pacific Ring of Fire as well as one of a ring of oceanic trenches around the northern edges of the Australian Plate. In 2005, scientists found evidence that the 2004 earthquake activity in the area of the Java Trench could lead to further catastrophic shifting within a relatively short period of time, perhaps less than a decade. This threat has resulted in international agreements to establish a tsunami warning system in place along the Indian Ocean coast. For about half its length, off of Sumatra, it is divided into two parallel troughs by
1994 Java earthquake coast. More than 200 people were killed in the tsunami. The shock could be felt strongly across Bali, central and eastern Java, Lombok, and Sumbawa. 1994 Java earthquake The 1994 Java earthquake occurred on June 3 at off the coast of Indonesia. The epicenter was off the eastern part of the southern Java coast, near the east end of the Java Trench. This earthquake occurred with a moment magnitude of 7.8 in a region which is characterized as having a weak seismic coupling. Earthquakes with slow rupture velocities are the most efficient tsunami generators, and this earthquake was classified as