Java Sumatra Plate

May 08, 2021

By Vineet K Gahalaut. What plate boundary is Java on.

Geology Of Indonesia Wikiwand

Active volcanoes and calderas fed by the rising magma parallel Sumatras west coast.

Java sumatra plate. 3 The 2006 M63 Yogayakarta crustal earthquake although moderate in magnitude left 2500 dead and became the second-most damaging earthquake in Indonesian history because it impacted densely populated. The immaturity of our understanding of. For example it has been called the Andaman trench along the AN islands and.

Earthquake forerunner as probable precursor an example from north. A trench is actually the deepest part of an ocean even though it is relatively close to the. On the basis of.

Anomalies that reCect both accretion and possibly asthenospheric upwelling associated with subduction of the Australian Plate beneath Eurasia around the SSZ. Java Trench The Indian Oceans average depth is 12274 feet 3741 metres and its deepest point in the Sunda Deep of the Java Trench off. Furthermore Java segment has a more symmetrical geometric shape while Sumatra segment is asymmetric one-sided.

Seismic sources are identiﬁed on the basis of geological seismological and geophysical data. The island is raised above sea level by the upwelling of hot buoyant magma derived from partially melted rocks along the boundary between the subducting Australia plate and the overriding Sunda plate. The Sunda Plate includes the South China Sea the Andaman Sea southern parts of Vietnam and Thailand along with Malaysia and the islands of Borneo Sumatra Java and part of Celebes in Indonesia plus the south-western Philippines islands of Palawan and the Sulu Archipelago.

Tectonic setting of Sumatra and Java islands Huchon and Le Pichon 1984. Encompassing Sumatra Java Malacca Strait peninsular Malaysia and Singapore. Sinuous-arcuate trench through the Sunda trench or Java trench along the Java-Sumatra islands.

To the Sumatra segment the Java segment is deeper. Triggered by the 2004 great Sumatra-Andaman earthquake. The plate tectonic setting of Sumatra has been as it is today for tens of millions of years and catastrophic geologic events have likely been plentiful.

Sumatra itself is part of an island arc. By Sujit Dasgupta and Basab Mukhopadhyay. Plate tectonics after the 26 December 2004 Great Sumatra earthquake.

Past one another transform plate boundary. The Sumatra Trench is a part of the Sunda Trench or Java Trench. Among these is Toba Caldera the site of the largest eruption.

The convection current in the upper layer of mantle constitutes the main force that controls the occurrence. Jammed subduction zone This earthquake occurred along the Java-Sumatra subduction zone where the Australian tectonic plate moves underneath Indonesias Sunda plate. Sumatra subduction zone SSZ is used to clas-sify all of those earthquakes that occurred near convergent boundaries where the Indo.

Slab tear and tensional fault systems in the SundaAndaman Benioff zone. For depths -6000 m there are only 138 samples for Sumatra while 547 samples for Java. However changes in slab geometry can also be the result of the subduction of oceanic crust of different ages and with different rates.

The region is tectonically among the most active on earth as the great 90 or perhaps even 93 magnitude earthquake on Dec. Since the trench parallel slip component increases from Java to Sumatra the present Indo-Australian plate motion leads to northward drag off Sumatra with geometrical distortion and detachment of the slab below Sumatra Widiyantoro and van der Hilst 1996. The Sunda subduction zone is located in the east part of Indian Ocean and is about 300 km from the southwest coast of Sumatra and Java islands.

The Java Trench is a deep underwater valley running long the coast of Java and Sumatra in Indonesia. The rupture was about 1200 km along the subduction plate boundary in the Sumatra and AN region registering a slip of about 2025 m. While normal subduction prevails in the Java arc region the subduction becomes progressively more oblique towards Sumatra and Andaman arc.

Implications on tectonics and potential seismic hazard. The continental and oceanic plates float on the quasi-plastic mantles. 26 2004 has sadly illustrated.

What is the deepest trench in the Indian Ocean. Two cautionary earthquakes have impacted Java since the 2004 Sumatra-Andaman earthquake and tsunami one crustal and the other an intermediate-depth or in-slab event. Important in seismic hazard assessment.

It extends over 5000 km long starting from Myanmar in the northwest and ending at Sumba Island in the southeast. The Sumatra segment has a steepness of 5786 on its eastern side facing Sumatra Island and. The 2005 volcano-tectonic earthquake swarm in the Andaman Sea.

Sumatras volcananism is caused by the northeastward subduction of the oceanic Indian-Australian plate at speeds of up to 70 mmyear under the continental Sunda plate part of the Eurasian plate. This research analyzes the earthquakes in subduction plane of Sumatra-Java to investigate the S speed structure under South-East Asia through seismogram fitting where the seismogram data is recorded in CHTO observational station. The Java-Sumatra-Andaman trencharc region is a tectonically active convergent plate margin in the eastern Indian Ocean where the Indian and Australian plates are subducting below the Eurasian plate.

Inversion is performed with 99741 Brst-arrival p waves from 16196 local and regional earthquakes occurred around the Sumatra.

Tectonic Map Of Indonesia Showing The Interaction Of 3 Major Plates Download Scientific Diagram