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Title: Study of seismicity around Toba area based on relocation hypocenter result from BMKG catalogue

Abstract

Toba area has complex tectonic setting attracting many earth scientists to study and understand tectonic and geological process or setting. The area is affected by oblique subduction zone, Renun Sumatran fault sub segment and some volcanoes that are near it. The earthquake catalogue provided by BMKG from April, 2009 to December, 2011 must be relocated firstly to get the precise hypocenter. We used catalogue data of P and S phase or P phase only and double-difference method to relocate the earthquakes. The results show hypocenter position enhancement that can be interpreted tectonically. The earthquakes after relocation relating to the Sumatran fault, subduction zone, volcanoes and seismic activities beneath Toba caldera can be mapped clearly. The relocated hypocenters in this study are very important to provide information for seismic hazard assessment and disaster mitigation study.

Authors:
 [1];  [2]
  1. Indonesia's Agency for Meteorology, Climatology and Geophysics (BMKG) Jl. Angkasa 1 No. 2 Kemayoran, Jakarta Pusat, 10720 (Indonesia)
  2. Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Indonesia, Jl. Ganesa 10, Bandung, 40132 (Indonesia)
Publication Date:
OSTI Identifier:
22218074
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1554; Journal Issue: 1; Conference: PIPS-2013: Padjadjaran international physics symposium 2013: Contribution of physics on environmental and energy conservations, Padjadjaran (Indonesia), 7-9 May 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; ACCIDENTS; CATALOGS; EARTHQUAKES; HAZARDS; HYPOCENTERS; MITIGATION; NATURAL DISASTERS; SEISMICITY; SUBDUCTION ZONES; VOLCANOES

Citation Formats

Ramdhan, Mohamad, and Nugraha, Andri Dian. Study of seismicity around Toba area based on relocation hypocenter result from BMKG catalogue. United States: N. p., 2013. Web. doi:10.1063/1.4820330.
Ramdhan, Mohamad, & Nugraha, Andri Dian. Study of seismicity around Toba area based on relocation hypocenter result from BMKG catalogue. United States. https://doi.org/10.1063/1.4820330
Ramdhan, Mohamad, and Nugraha, Andri Dian. 2013. "Study of seismicity around Toba area based on relocation hypocenter result from BMKG catalogue". United States. https://doi.org/10.1063/1.4820330.
@article{osti_22218074,
title = {Study of seismicity around Toba area based on relocation hypocenter result from BMKG catalogue},
author = {Ramdhan, Mohamad and Nugraha, Andri Dian},
abstractNote = {Toba area has complex tectonic setting attracting many earth scientists to study and understand tectonic and geological process or setting. The area is affected by oblique subduction zone, Renun Sumatran fault sub segment and some volcanoes that are near it. The earthquake catalogue provided by BMKG from April, 2009 to December, 2011 must be relocated firstly to get the precise hypocenter. We used catalogue data of P and S phase or P phase only and double-difference method to relocate the earthquakes. The results show hypocenter position enhancement that can be interpreted tectonically. The earthquakes after relocation relating to the Sumatran fault, subduction zone, volcanoes and seismic activities beneath Toba caldera can be mapped clearly. The relocated hypocenters in this study are very important to provide information for seismic hazard assessment and disaster mitigation study.},
doi = {10.1063/1.4820330},
url = {https://www.osti.gov/biblio/22218074}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1554,
place = {United States},
year = {Mon Sep 09 00:00:00 EDT 2013},
month = {Mon Sep 09 00:00:00 EDT 2013}
}