Abstract The purpose of this research was to estimate the source parameters of a mainshock earthquake (Mw=6.4) that occurred on 1 October 2009 in the Dikit major segment of the Sumatran Fault Zone (SFZ). The source parameters were analyzed by the inversion of three-component local waveforms recorded by the GEOFON broadband IA network. Moment tensor of the event was determined using the Discrete Wave number method to calculate the Green function and the iterative deconvolution method to invert the moment tensors. From the analysis, we obtained the fault parameters of the mainshock, which are strike=324°, dip= 80° and rake= -173°. Abstrak Penentuan Parameter Sumber Gempabumi Jambi (1 Oktober 2009, Mw=6,4) Menggunakan Tiga Komponen Waveforms Lokal. Penelitian ini bertujuan untuk mengestimasi parameter sumber gempa bumi utama (Mw-6,4) yang terjadi pada 1 Oktober 2009 di segmen Dikit yang merupakan bagian dari Sumatra Fault Zone (SFZ). Parameter sumber gempa bumi dianalisis menggunakan metode inversi tiga komponen waveform lokal yang direkam oleh jaringan stasiun seismik GEOFON-IA. Momen tensor dari gempa bumi ditentukan dengan metode Discrete Wavenumber untuk menghitung fungsi Green. Selanjutnya momen tensor ditentukan menggunakan metode dekonvulasi untuk menginversi momen tensor. Berdasarkan hasil analisis ditemukan bahwa tipe sesar yang menyebabkan gempa bumi utama memiliki strike=324°, dip= 80° dan rake= -173°. Keywords: discrete wavenumber method, earthquake local waveform, inversion method
| Published by | Universitas Indonesia |
| Journal Name | MAKARA of Science Series |
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| Location | Kota depok, Jawa barat INDONESIA |
| Website | science| http://journal.ui.ac.id/index.php/science| |
| ISSN | ISSN : 23391995, EISSN : 23560851, DOI : 10.7454, |
| Core Subject | Science, |
| Meta Subject | Biochemistry, Genetics & Molecular Biology, Chemistry, Earth & Planetary Sciences, Materials Science & Nanotechnology, Physics, |
| Meta Desc | MAKARA Journal of Science publishes high quality research on fundamental science and provides a broad-based forum for the information sharing of ongoing research and development in science. Topics covered include physics, chemistry and biology. All submitted manuscripts will be subjected to the peer review process following a thorough inspection by the editors. Makara Journal of Science is the successor to the "MAKARA of Science Series" and "Makara Sains", which have been published since 1997. Starting from 2014, the journal has been periodically published four times a year (March, June, September, and December). |
| Penulis | Madlazim Madlazim |
| Publisher Article | Directorate of Research and Community Engagement, Universitas Indonesia |
| Subtitle Article | Makara Journal of Science Vol 17, No 1 (2013): April |
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Informasi yang terkait dengan Determining the Source Parameters of the Jambi Earthquake (1 October 2009, Mw =6.4) Using Three Component Local Waveforms