A reappraisal of active faults in central-east Iran(Kerman province)  

作　　者：Mohammad Talebi Abbas Sivandi-Pour Ghasem-Ali Ahmadi Ehsan Noroozinejad Farsangi Shamseddin Esmaeili Mohammad-Javad Banimahdi-Dehkordi Hamidreza Safizadeh Mahdieh Akbarpoor Ehsan Ebrahimi Rabe Sharifi Rad Manoochehr Fallah 

机构地区：[1]International Institute of Earthquake Engineering and Seismology(IIEES),Tehran 1953714515,Iran [2]Faculty of Civil and Surveying Engineering,Graduate University of Advanced Technology,Kerman 7631885356,Iran [3]Geological and Geotechnical Department,Padidab Sepahan Consulting Engineers,Esfahan 8166815173,Iran [4]Razi University,Kermanshah 6714115111,Iran [5]Institute for Advanced Studies in Basic Sciences(IASBS),Zanjan 4513766731,Iran [6]Kerman Provincial Gas Corporation,National Iranian Gas Company,Kerman 7616859920,Iran

出　　处：《Earthquake Science》2022年第2期122-137,共16页地震学报（英文版）

基　　金：the financial support of Kerman Provincial Gas Corporation&National Iranian Gas Company to conduct this research via Funding Sources of #062570 and#062571.

摘　　要：Fault lineaments are the main input data in earthquake engineering and seismology studies.This study presents a digitally-based active fault map of the Kerman region in central-east Iran which experienced several devastating earthquakes on poorly exposed and/or not identified active faults.Using Landsat 8 data,we have carried out the image-based procedures of fault mapping,which include applying the contrast stretching technique,the principal component analysis,the color composite technique,the spectral rationing,and creating the false-color composite images.Besides,we have cross-checked the resulting map with the geological maps provided by the Geological Survey of Iran to decrease the associated uncertainties.The resulting map includes 123 fault segments,still,a part of which has been expressed in the previously compiled active-fault maps of Iran.Indeed,the new one is mapping the poorly exposed active faults,so-called secondary faults,which are able to produce strong events.These faults are primarily associated with poorly defined areas that accommodate low levels of seismicity;however,sporadic strong events are likely to occur.It has also been investigated that these kinds of faults are seismogenic and are able to produce destructive events.In total,the outcome of this study can also be jointed with seismic studies for investigating parts of the earthquake activity in central-east Iran,in particular for the fault-based approaches in impending earthquake-resistant buildings.

关 键 词：central-east Iran KERMAN active fault satellite image processing remote sensing 

分 类 号：P237[天文地球—摄影测量与遥感] P315.7[天文地球—测绘科学与技术]