Estimation of Maximum Horizontal Acceleration of Earthquakes in Kerman Province using Probability Method

Document Type : Research Article

Authors

1 Professor in Seismology, Shahid Bahonar University of Kerman, Kerman, Iran

2 PhD Candidate in Civil Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

3 Professor in Civil Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

Abstract

Considering devastating events like the 2003 Bam earthquake (M_w~6.6), it is essential to develop up-to-date earthquake hazard maps to design structures in this area. In this study, a seismic catalog including historical and instrumental events was compiled and then 21 seismic sources were identified in Kerman province and its surrounding. Seismicity parameters were estimated for all 21 source zones and an attenuation relationship was selected to obtain local site effect-based seismic hazard maps. Finally, seismic hazard maps, which is one of the basic requirements of seismic design and seismic regulations, were presented in form of the peak ground acceleration (PGA) measures for the return period of 475 and 2475 years, and the high risk areas in Kerman Province were introduced. To investigate the depth of events on Iranian plateau, according to the studies conducted in this study, it is suggested to use only the data obtained from local seismic networks. The results were presented as seismic hazard maps for the parameters of maximum intensity of horizontal ground acceleration, taking into account construction effects with a probability of 2% and 10% over 50 years for all parts of Kerman province to provide all design needs according to 2800 regulations. Using the obtained maps, the earthquake parameter in the Iranian Seismic Code (Code 2800) can be updated. Results showed that, as expected, two areas in Kerman province are with the highest accelerations: The first is the Kuhbanan-Golbaf-Bam fault systems with a northwest-southeast trend and the second is the northeast termination of Zagros toward Makran. Both of these ranges are seismic and of great importance in seismic surveys. These areas include Kuhbanan-Golbaf-Bam fault systems and Jiroft-Kahnooj.

Graphical Abstract

Estimation of Maximum Horizontal Acceleration of Earthquakes in Kerman Province using Probability Method

Keywords


اخلاص پور، پ؛ عباس‌نژاد، ا؛ نعمتی، م؛ 1400. استفاده از سامانه اطلاعات جغرافیایی و روش تحلیل سلسله‌مراتبی در پهنه‌بندی خطر زمین‌لرزه استان کرمان.  مجله یافتههای نوین زمینشناسی کاربردی. دوره 17. شماره 33. بهار و تابستان 140، 73-69.
حسن‌زاده، ر؛ عباس نژاد، ا؛ علوی، ا؛ شریفی تشنیزی، ا؛ 1390. تحلیل خطر لرزه‌ای شهر کرمان با تأکید بر کاربرد GIS در ریز پهنه‌بندی مقدماتی درجه 2. علوم زمین. 21(81), 23-30.
 
Ambraseys, N. N., & Melville, C. P., 2005. A history of Persian earthquakes. Cambridge university press, p 240, www.Cambridge.org/.
Berberian, M., 2005. The 2003 Bam urban earthquake: a predictable seismotectonic pattern along the western margin of the rigid Lut Block, southeast Iran. Earthq. Spectra. 21 (S1), S35–S99.
Ghasemi Nejad, Rezvan, Rahim Ali Abbaspour, Masoud Mojarab, (2021. Associating earthquakes with faults using cluster analysis optimized by a fuzzy particle swarm optimization algorithm for Iranian provinces, Soil Dynamics and Earthquake Engineering, Volume 140, 106433, https://doi.org/10.1016/j.soildyn.2020.106433/.
Mahsuli, M., Rahimi, H., & Bakhshi, A., 2019. Probabilistic seismic hazard analysis of Iran using reliability methods. Bulletin of Earthquake Engineering, 17(3), 1117-1143.
Mehrabi, A.; Pirasteh, S.; Rashidi, A.; Pourkhosravani, M.; Derakhshani, R.; Liu, G.; Mao, W.; Xiang, W., 2021. Incorporating Persistent Scatterer Interferometry and Radon Anomaly to Understand the Anar Fault Mechanism and Observing New Evidence of Intensified Activity. Remote Sens. 13, 2072. https://doi.org/10.3390/rs13112072.
Mirzaei, N., Gao, M., Chen, Y., Wang, N., 1997. A uniform catalog of earthquakes for seismic hazard assessment in Iran. Acta Seismologica Sinica, 10, 713–726.
Moinfar, A. A., Naderzadeh, A., & Nabavi, M. H., 2012. New Iranian seismic hazard zoning map for new edition of seismic code and its comparison with neighbor countries. In 15th World conference on earthquake engineering (15th WCEE, LISBOA, 2012-09-24 - 2012-09-28.
Nemati, M., 2015. Aftershocks investigation of 2010 Dec. and 2011 Jan. Rigan earthquakes in the southern Kerman province, SE Iran. Journal of Tethys (Iran), 3(2): 96-113.
Nemati, M., 2018. Probabilistic View of Occurrence of Large Earthquakes In Iran. Journal of Sciences, Islamic Republic of Iran, 29(3), 241-252.
Nemati, M., 2019. Inter-event times between large earthquakes in Iran. Earthquake Sciences, 32: 1-18.
Nemati, M., Hajati, F. J., Rashidi, A., & Hassanzadeh, R., 2020. Seismology of the 2017 Hojedk earthquakes (MN 6.0–6.1), Kerman province, SE Iran. Tectonophysics, 780, 228398. Nemati, M., 2015c. Aftershocks investigation of 2010 Dec. and 2011 Jan. Rigan earthquakes in the southern Kerman province, SE Iran. Journal of Tethys (Iran), 3(2): 96-113.
Nemati, M. and Derakhshani, R., 2020. Short-term seismicity patterns along the most active faults in Iran", 47, 441-459.
Savidge, E., Nissen, E., Nemati, M., Karasözen, E., Hollingsworth, J., Talebian, M., ... & Rashidi, A., 2019. The December 2017 Hojedk (Iran) earthquake triplet—sequential rupture of shallow reverse faults in a strike-slip restraining bend. Geophysical Journal International, 217(2), 909-925.
Ahmad Rashidi, Mohamad Mahdi Khatib, Faramarz Nilfouroushan, Reza Derakhshani, Seyed Morteza Mousavi, Hossein Kianimehr, Yahya Djamour., 2019. Strain rate and stress fields in the West and South Lut block, Iran: Insights from the inversion of focal mechanism and geodetic data, Tectonophysics, 766, 94-114.
Ahmad Rashidi, Mohammad-Reza Abbassi, Faramarz Nilfouroushan, Shahram Shafiei, Reza Derakhshani, Majid Nemati., 2020. Morphotectonic and earthquake data analysis of interactional faults in Sabzevaran Area, SE Iran, Journal of Structural Geology, https://doi.org/10.1016/j.jsg.2020.104147.
Tavakoli, B. and Ghafory-Ashtiany, M., 1999. Seismic Hazard Assessment of Iran, Annali di Geophysica, Vol. 42, 6, Dec. 1999, https://doi.org/10.4401/ag-3781.
Walker, R. T., Bergman, E. A., Elliott, J. R., Fielding, E. J., Ghods, A. R., Ghoraishi, M., ... & Talebian, M., 2013. The 2010–2011 South Rigan (Baluchestan) earthquake sequence and its implications for distributed deformation and earthquake hazard in southeast Iran. Geophysical Journal International, 193(1), 349-374.
Yazdani, A., & Kowsari, M., 2017. A probabilistic procedure for scenario-based seismic hazard maps of Greater Tehran. Engineering Geology, 218, 162-172.
Building and House Research Center (BHRC), accelerometry network, http://www.bhrc.ac.ir/, 2020 .
International Institute of Earthquake Engineering and Seismology (IIEES), http://www.iiees.ac.ir/, 2020.
Harvard University, Department of Geological Sciences, Global Centroid Moment Tensor catalogue (GCMT). available online at: http://www.globalcmt.org/CMTsearch.html/, 2020.
International Seismological Center, ISC, http://www.isc.ac.uk/, 2020.
Institute of Geophysics University of Tehran, IGUT, http://irsc.ut.ac.ir/, 2020.
United State Geological Survey, USGS, http://www.neic.usgs.gov/, 2020.
 
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