naa a22 4500 510755704 CHVBK 20180411083121.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s12594-013-0085-8 doi (NATIONALLICENCE)springer-10.1007/s12594-013-0085-8 A panoptic view of western margin of Sundaland: Causes of seismic vulnerability of Sumatra [Elektronische Daten] [Abhijit Deonath, Basab Mukhopadhyay] The western margin of Sundaland is affected by two major tectonic events, the India-Eurasia collision and subduction along the Burmese-Andaman-Sunda Arc. Geotectonic analysis of the Burmese-Andaman-Sunda Arc areas reveals that it represents an arc setting exposed both in land and sea environment. Within this broad arc setting, there are individual segments that illustrate discernible trends in terms of structural, seismic and geological characteristics. The Equatorial Region around Sumatra has some peculiar geological/geophysical characteristics that make it a tectonic hotspot. Here a relationship between the active volcanism and the development of forearc basins is established. It is also proposed that the downgoing oceanic plate is more strongly coupled to the overlying plate where it is youngest (∼ 40 Ma), has the highest temperature and is topographically most elevated with highest seismic activity. In particular, an increase in convergence rate and presence of youngest oceanic crust appear to be the main controlling factor underpinning the tectonics and surge of recent seismic activity in Sumatra. Geological Society of India, 2013 Seismic hazard nationallicence Tectonics nationallicence Sundaland nationallicence Sumatra nationallicence Andaman Sea nationallicence Myanmar nationallicence Deonath Abhijit Research School of Earth Sciences, The Australian National University, Mills Road, 0200, Acton, ACT, Australia aut Mukhopadhyay Basab Geological Survey of India, 27 J. L. Nehru Road, 700016, Kolkata, India aut Journal of the Geological Society of India Springer-Verlag 81/5(2013-05-01), 637-646 0016-7622 81:5<637 2013 81 12594 https://doi.org/10.1007/s12594-013-0085-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12594-013-0085-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Deonath Abhijit Research School of Earth Sciences, The Australian National University, Mills Road, 0200, Acton, ACT, Australia aut NATIONALLICENCE 700 1- Mukhopadhyay Basab Geological Survey of India, 27 J. L. Nehru Road, 700016, Kolkata, India aut NATIONALLICENCE 773 0- Journal of the Geological Society of India Springer-Verlag 81/5(2013-05-01), 637-646 0016-7622 81:5<637 2013 81 12594 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer