Sunda Trench Sunda Trench The Sunda Trench, earlier known as and sometimes still indicated as the Java Trench, is an oceanic trench located in the Indian Ocean near Sumatra, formed where the Australian-Capricorn plates subduct under a part of the Eurasian Plate. It is long. Its maximum depth (at 10°19'S, 109°58'E, about 320 km south of Yogyakarta), is the deepest point in the Indian Ocean. The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra on to the Andaman Islands, and forms the boundary between Indo-Australian Plate and Eurasian plate (more specifically, Sunda Plate). The trench
1943 Central Java earthquake 1943 Central Java earthquake The 1943 Central Java earthquake occurred on July 23 at 14:53:10 UTC with a moment magnitude of 7.0 near Java, which was under Japanese occupation. The Yogyakarta depression area is mostly covered by alluvium and the volcanic deposit of Mount Merapi. The Yogyakarta depression area is located between the volcanic arc of the Central Java and the Java Trench. The earthquake affected the Yogyakarta depression area in Central Java. It caused about 213 deaths and over 3,900 injuries. More than 12,600 houses collapsed. This earthquake caused damage in Central Java from Garut in the west to