Seismic Risk Reduction in South Sulawesi Province Using Geostate V2.0 Software
Keywords:
Earthquake Risk, Seismic Risk Reduction, MMIAbstract
In South Sulawesi Province there is the Walanae Fault, which causes this area to often experience natural phenomena of earthquakes. This study aims to reduce the risk of earthquakes in South Sulawesi Province by knowing the estimation of shocks from the shakemap scenario model. The method used in this research is the Gutenberg Richter Method through a statistical approach. This study uses IRIS earthquake data in the South Sulawesi region in 1990 - 2020. The research location is in South Sulawesi Province by dividing the area into two segments, namely the northern segment and the southern segment. This study uses earthquake parameters with a magnitude > 1 and a depth of < 50 km. The results of the analysis show that the potential for earthquakes in the next 10 years with a magnitude of M = 7 in the northern segment is estimated at 100% with an estimated VII-VIII MMI shock level around Soppeng, Bone and Barru Regencies. The results of the estimation of shocks and the percentage of potential earthquake risk can be used as steps to carry out mitigation in order to reduce the risk of earthquakes in the area.
Downloads
References
Bergman, S. C., Coffield, D. Q., Talbot, J. P., and Garrard, R. J. (1996). Tertiary Tectonic and Magmatic Evolution of Western Sulawesi and The Makassar Strait, Indonesia, Evidence for a Miocene Continent-Continent Collision. Tectonic Evolution of SE Asia, ed Hall R and Blundell D J (London: The Geological Society Special Publications) (106), 391–430.
Berry, R. F and Grady A,E. (1987). Mesoscopic structures produced by Plio-Pleistocene wrench faulting in South Sulawesi, Indonesia. Journal of Structural Geology. (9) 563–571
Bilim, F. (2019). The Correlation of b-value In The Earthquake Frequency Magnitude Distribution, Heat Flow and Gravity Data in The Sivas Basin, Central Eastern Turkey .Bitlis Eren University Journal of Science and Technology, (9), 11-15.
Cipta A, Robiana R, Griffin J. D., Horspool, N., Hidayati, S. and Cummings, P. R. (2017). A Probabilistic Seismic Hazard Assessment For Sulawesi, Indonesia Geohazards in Indonesia: Earth Science For Disaster Risk Reduction, ed Cummins PR and Meilano I (London: The Geological Society Special Publications) (441),133–152.
Coffield, D. Q., Bergman, S. C., Carrard, R. A., Guritno, N., Robinson, N. M, and Talbot, J. (1993). Tectonic and Stratigraphic Evolution of The Kalosi PSC Area and Associated Development of a Tertiary Petroleum System, South Sulawesi, Indonesia. Proceedings of the Indonesian Petroleum Association (22), 679–706
Elburg, M. and Foden, J. (1999). Geochemical response to varying tectonic settings: An example from southern Sulawesi (Indonesia).Geochimica et Cosmochimica Acta. (63), 1155–72
Grainge A.M and Davies, K.G. (1985). Reef exploration in the East Sengkang Basin, Sulawesi. Marine and Petroleum Geology (2), 142–155.
Hall, R. (2002). Cenozoic Geological and Plate Tectonic Evolution of SE Asia and The SW Pacific: Computer-Based Reconstructions, Model and Animations. Journal of Asian Earth Sciences, (20), 235–431
Hall, R., and Wilson, M. E. J. (2000). Neogene Sutures in Eastern Indonesia. Journal of Asian Earth Sciences, (18), 781–808
Hamilton, W. (1979). Tectonics of the Indonesian Region. US Geological Survey Professional Paper. 1078.
Ibrahim, G., dan Subardjo. (2005). Pengetahuan Seismologi. Jakarta:Badan Meteorologi dan Geofísika.
Irsyam M, Sengara, I. W., Asrurifa, M., Ridwan, M., Aldimar, S., Widiyantoro, S., Triyoso, W., Natawijaya, D. H., Kertapati, E., Meilano, I and Suhardjono. (2010) Development of Seismic Hazard Maps of Indonesia for Revision of Seismic Hazard Map, SNI. 03-1726-2002.
Jaya, A., Nishikawa, O. and Hayasaka, Y., (2017). LA-ICP-MS zircon U-Pb and muscovite K-Ar Ages of Basement Rocks from The South Arm of Sulawesi, Indonesia. Elsevier, 96-110
Jaya, A. Nishikawa, O and Jumadil, S. (2020). Paleoseismic of the Walanae Fault Zone in the South Arm of Sulawesi, Indonesia. xCBx. Preprint. https://easychair.org/publications/preprint/xCBx
Jaya, A., and Nishikawa, O. (2013). Paleostress reconstruction from calcite twin and faulteslip data using the multiple inverse method in the East Walanae fault zone: Implications for the Neogene contraction in South Sulawesi, Indonesia. Journal of Structural Geology (55), 34-49.
Lay, T., and Wallace T. C. (1995). Modern Global Seismology. Academic Press: San Diego.
Lusiani, E., S. Anwar dan M. F. Nugraha. (2018). Penentuan Tingkat Seismisitas Wilayah Propinsi Aceh dengan Metode Gutenberg Ritcher (Nilai a dan b), Jurnal Meteorologi dan Geofisika,(19),71-79.
National Center for Earthquake Studies (PuSGeN). (2017). Seismic Source and Hazard Map of Indonesia. Jakarta : Kementerian PUPR.
Pawirodikromo, W. (2012). Seismologi Teknik dan Rekayasa Kegempaan, Yogyakarta: Pustaka Pelajar
Priadi, B., Polvé, M., Maury, R. G., Bellon, H., Soeria, A. R., Joron, J. L. and Cotton, J. (1994). Tertiary and Quaternary Magmatism in Central Sulawesi: Chronological and Petrological Constraints. Journal of Southeast Asian Earth Sciences (9), 81–93.
Rohadi, S., H. Grandis dan Ratag, M. A. (2008). Studi Potensi Seismotektonik sebagai Precursor Tingkat Kegempaan di Wilayah Sumatera, Jurnal Meteorologi dan Geofisika, 9, 2.
Sucuoğlu, H., and Akkar, S. (2014). Basic Earthquake Engineering. Heidelberg: Springer Cham
Sukamto, R. (1975). Regional Conference on the Geology and Mineral Resources of SE Asia Jakarta, 1–25
Van Leeuwen, T. (1981). The geology of southwest Sulawesi with special reference to the Biru area. The Geology and Tectonics of Eastern Indonesia., ed Barber A and Wiryosujono S (London: The Geological Society Special Publications) (2), 277–304
Van Leeuwen, T. M., Susanto, E. S., Maryanto. S., Hadiwisastra, S., Sudijono and Muharjo. (2010). Tectonostratigraphic evolution of Cenozoic marginal basin and continental margin successions in the Bone Mountains, South Sulawesi, Indonesia. Journal of Asian Earth Sciences (38) 233-254
Yuwono, Y. S., Maury, R., and Soeria, A. R., Bellon, H. (1988). Tertiary and Quaternary Geodynamic Evolution of South Sulawesi: Constraints From The Study Of Volcanic Units. Geologi Indonesia. Jakarta. (13), 32–48
