Fajriyanto, Fajriyanto and Meilano, Irwan and Manurung, Parluhutan and Rahmadi, Eko (2012) Modeling Deformation at Sunda Strait Base On GPS Observation of Year 2006 - 2011. The 1 st Conference on Geospatial Information Science and Engineering, 1 (1). pp. 135-144. ISSN 978-979-98731-4-9

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Abstract

The Sunda Strait is the meeting of two tectonic plates, the Eurasian plate and Indo-Australian plate. Sunda Strait has a fairly high seismic activity. This is shown by several earthquakes that have occurred in the Sunda Strait. The high seismic activity was caused by the presence of active faults and subduction zones in the Sunda Strait. Based on the fairly high seismic activity in the Sunda Strait is necessary to do research on the velocity, strain rate, slip rate, and modeling of subduction that occurred in the Sunda Strait. In this study CGPS observations contained in the Sunda Strait and parts of Java Barat performed in 2009 to 2011, using data that is managed by BIG (Bakosurtanal). Based on the results of GPS data processing, the observation point in the western part of the Sunda Strait has velocity in the direction of the North West with a value ranging from 2.21 to 3.16 shift in cm / year and the eastern part of the Sunda Strait between 2.09 to 3.24 shift cm / year to the Northeast. Based on the pattern of strain, the West tends to have an extension of the Sunda Strait, as well as for the eastern Sunda Strait. While the northern part of the Sunda Strait compressed. This shows the activity and the Sumatran Subduction Fault in the area. Of the estimated shear rate, Sumatra fault segments Semangko Fault has a value of slip rate of 25 mm / year. Modeling of subduction (coupling) is conducted in this study were divided into 4 (four) areas, with a coupling value varying rate. The smallest rms value indicates that the model was approaching from the CGPS observations, so as to provide information related to the seismic activity that occurred in the Sunda Strait.

Item Type:	Article
Subjects:	Q Science > QE Geology
Divisions:	Fakultas Teknik (FT) > Prodi Teknik Geodesi
Depositing User:	FAJRIYANTO
Date Deposited:	05 Apr 2023 07:35
Last Modified:	05 Apr 2023 07:35
URI:	http://repository.lppm.unila.ac.id/id/eprint/49664

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