Sunda trench - wikipedia Sunda trench Map showing earthquake activity in the vicinity of the Java Trench around the time of the 2004 Indian Ocean earthquake. Prepared by the United States Geological Survey The Sunda Trench, earlier known as, and sometimes still indicated as the Java Trench, is located near Sumatra, formed where the Australian Plate subducts under a part of the Eurasian Plate. With a length of 3,200 kilometres ( 2,000 mi ). The maximum depth of 7,725 metres ( 25,344 ft ) ( 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 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. There is scientific 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. Contents 1 Characteristics 2 Exploration 3 Associated seismicity 3.1 Sumatra segment 3.2 Java segment 4 See also 5 References 6 Further reading Characteristics Main article : Geology of the Sumatra Trench For about half its length, off of Sumatra, it is divided into two parallel troughs by an underwater ridge, and much of the trench is at least partially filled with sediments. Mappings after the 2004 Indian Ocean earthquake of the plate boundary showed resemblance to suspension bridge cables, with peaks and sags, indicative of asperity and locked faults, instead of the traditional wedge shape expected. Exploration Some of the earliest exploration of the Trench occurred in the late 1950s when Robert Fisher, Research Geologist at the Scripps Institution of Oceanography, investigated the trench as part of a worldwide scientific field exploration of the world 's ocean floor and sub-oceanic crustal - structure. Bomb - sounding, echo - train analysis and manometer were some of the techniques used to determine the depth of the trench. The research contributed to an understanding of the subduction characteristic of the Pacific margins. Various agencies have explored the trench in the aftermath of the 2004 earthquake, and these explorations have revealed extensive changes in the ocean floor. Associated seismicity The subduction of the Indo - Australian Plate beneath a bloc of the Eurasian Plate is associated with numerous earthquakes. Several of these earthquakes are notable for their size, associated tsunamis, and / or the number of fatalities they caused. Sumatra segment 1797 Sumatra earthquake : magnitude ~ 8.4 1833 Sumatra earthquake : magnitude 8.8 -- 9.2 1861 Sumatra earthquake : magnitude ~ 8.5 1935 Sumatra earthquake : magnitude 7.7 2000 Sumatra earthquake : magnitude 7.9 2002 Sumatra earthquake : A magnitude 7.3 earthquake that occurred at the boundary between the rupture areas of the 2004 and 2005 earthquakes listed below. 2004 Indian Ocean earthquake and tsunami : Mw 9.1 -- 9.3 2005 Nias -- Simeulue earthquake : magnitude 8.6 September 2007 Sumatra earthquakes : Series of earthquakes, the three largest were magnitude 8.5, 7.9 and 7.0. 2009 Sumatra earthquakes : magnitude 7.9 2010 Mentawai earthquake and tsunami : magnitude 7.7 Java segment 1917 Bali earthquake : magnitude 6.6 1994 Java earthquake : magnitude 7.8 2006 Pangandaran earthquake and tsunami : magnitude 7.7 2009 West Java earthquake : magnitude 7.0 See also Banda Arc Islands of Indonesia Plate tectonic Sunda Arc Sunda Islands Greater Sunda Islands Lesser Sunda Islands Sundaland Oceanic trench References Jump up ^ Sunda Trench ( 4 ° 30 ' S 11 ° 10 ' S 100 ° 00 ' E 119 ° 00 ' Accredited by : SCGN ( Apr. 1987 ) The trench was studied in some detail in 1920 's - 1930 's by Dutch geodesist F.A. Vening Meinesz, who made classic pendulum gravity measurements in a Dutch submarine. Shown as Java Trench in ACUF ( Advisory Committee on Undersea Features Gazetteer ). see also : http://www.gebco.net/ Jump up ^ Java Trench -- article from Encyclopædia Britannica Jump up ^ Asia primed for next big quake -- earth -- 19 March 2005 -- New Scientist Environment Jump up ^ IOC : Towards a Tsunami Warning System in the Indian Ocean Jump up ^ `` Press Release : Folded sediment unusual in Sumatran tsunami area ''. Penn State University. February 2, 2007. Jump up ^ https://web.archive.org/web/20060430125347/http://www.ngdc.noaa.gov/mgg/gebco/news/rlfnews.pdf Jump up ^ `` The underwater survey of the SUMATRA earthquake source area '' Further reading Špičák, A., V. Hanuš, and J. Vaněk ( 2007 ), Earthquake occurrence along the Java trench in front of the onset of the Wadati -- Benioff zone : Beginning of a new subduction cycle ?, Tectonics, 26, TC1005 Coordinates : 10 ° 19 ′ S 109 ° 58 ′ E ﻿ / ﻿ 10.317 ° S 109.967 ° E ﻿ / - 10.317 ; 109.967 Tectonic plates of Southeast Asia -- New Guinea ( Australian Plate - Pacific Plate Convergence Zone ) Large Caroline Plate Philippine Sea Plate Sunda Plate Small West Burma Plate Philippines Philippine Mobile Belt Indonesia Banda Sea Plate Bird 's Head Plate Halmahera Plate Molucca Sea Collision Zone Sangihe Plate Timor Plate New Guinea Maoke Plate North Bismarck Plate Manus Plate Solomon Sea Plate South Bismarck Plate Woodlark Plate Faults Great Sumatran fault Marikina Valley Fault System New Britain Subduction Zone Palu Fault Philippine Fault System Ramu - Markham Fault Sorong Fault Trenches and troughs Java Trench ( Sunda ) with Mentawai Trough Sunda Trough Timor Trough Philippines Cotabato Trench Manila Trench North Luzon Trough Negros Trench Palawan Trench Philippine Trench East Luzon Trench Sulu Trench Sulawesi & Moluccas Aru Trough Banda Trench Ceram Trough Salajar Trough Sangihe Trough Talaud Trough Ternate Trough Timor Aur Trough Tanimbar Trough New Guinea Ayu Trough Kilinailai Trench Manokwari Trough Lyra Trough Manus Trench Mussau Trench New Guinea Trench Pocklington Trough New Britain Trench ( Bougainville ) West Caroline Trough West Melanesian Trench Subsea plateaus and basins Arafura Basin Aru - Tanimbar Basin Bengkulu Basin Benham Plateau Bula Basin East Natuna Basin Geelvinck ( Cendrawasih ) Basin Minahasa Basin North Australian Basin North Biak Basin North Flores Basin Northern East Java Basin Northern Makassar Basin Sawu Basin Southern Makassar Basin Talaud Basin Weber Basin West Halmahera Basin West Natuna Basin Earthquakes in Indonesia Historical 1629 Banda Sea 1797 Sumatra 1833 Sumatra 1861 Sumatra 1899 Ceram 20th century 1917 Bali 1931 Southwest Sumatra 1935 Sumatra 1938 Banda Sea 1943 Alahan Panjang 1943 Central Java 1965 Ceram Sea 1968 Sulawesi 1976 Papua 1976 Bali 1977 Sumba 1979 Bali 1981 Irian Jaya 1982 Flores 1984 Northern Sumatra 1989 West Papua 1991 Kalabahi 1992 Flores 1994 Liwa 1994 Java 1996 Biak 2000 Enggano 21st century 2002 Sumatra 2004 Nabire 2004 Indian Ocean 2005 Nias -- Simeulue 2006 Banda Sea 2006 Yogyakarta 2006 Pangandaran March 2007 Sumatra September 2007 Sumatra 2008 Sulawesi 2009 Papua 2009 Talaud Islands August 2009 Sumatra 2009 West Java September 2009 Sumatra April 2010 Sumatra May 2010 Northern Sumatra 2010 Papua 2010 Mentawai 2011 Aceh Singkil Regency 2012 Indian Ocean 2013 Aceh 2016 Mentawai 2016 Aceh Related topics Sunda Trench Great Sumatran fault Sunda megathrust Geology of the Sumatra Trench Retrieved from `` https://en.wikipedia.org/w/index.php?title=Sunda_Trench&oldid=800722022 '' Categories : Oceanic trenches of the Indian Ocean Geology of Indonesia Subduction zones Hidden categories : All articles with unsourced statements Articles with unsourced statements from April 2011 Coordinates on Wikidata Use dmy dates from April 2017 Talk Contents About Wikipedia Azərbaycanca বাংলা Беларуская Български Català Čeština Deutsch Español Euskara Հայերեն हिन्दी Hrvatski Bahasa Indonesia Italiano Қазақша Bahasa Melayu Nederlands नेपाल भाषा 日本 語 Polski Português Русский Basa Sunda Svenska Українська 中文 Edit links This page was last edited on 15 September 2017, at 08 : 06. 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Question: java trench is the deepest point of which ocean
Answer: Indian Ocean