This study is aimed to elucidate individual fault response and peculiar earthquake characteristics in complex seismotectonic environment of southern Pakistan (Balochistan, Sindh and frontal offshore areas). The southern Pakistan is a seismic-mélange wherein earthquake prone sources are diversified and closely associated with active plate margins. The spatial patterns of seismicity are significant in reckoning seismic potential of active fault lineaments in intraplate cohorts of Arabian, Eurasian and Indian plates. The tectonic earthquakes during the period of 325 B.C to February 2020 are compiled in a catalog. This updated catalog has been thoroughly processed by standard procedures necessary for magnitude coherency, main shocks declustering, magnitude completeness etc. Since, the faulty blocks are extending beyond international borders, a wide region is outlined for cataloging and thorough screening of fault lines. The fault lineaments are digitized after geo-referencing of structural and tectonic maps. A rigorous effort is made to review literature to gather allied data sets of plate kinematics, GPS constraints across faulty blocks and slip-sense during major events. Individual fault lines are examined carefully to discriminate seismicity yield by considering their geometry and influence of seismotectonic settings. The seismicity characteristics of fault lines are used to ascribe ‘seismicity index’ that helped to rank potential faults from I (least active) to V (highly active). Kernel density maps are prepared to allure vulnerable pockets of the fault lineaments for specific magnitude classes. Seismicity Index and Kernel density models are significant to analyze spatial changes in potential magnitude strength which may be pertinent for urban planners and developers to design earthquake resistant buildings in study area.

这项研究旨在阐明巴基斯坦南部（Ba路支斯坦，信德省和额海近海地区）复杂地震构造环境中的个别断层响应和特殊的地震特征。巴基斯坦南部是地震混杂地区，地震易发源种类繁多，并与活跃的板块边缘紧密相关。地震活动性的空间格局对于估算阿拉伯，欧亚和印度板块内板块群活动断层的潜在地震作用具有重要意义。目录中汇总了公元前325年至2020年2月的构造地震。此更新目录已通过幅度一致性，主震减弱，幅度完整性等所需的标准程序进行了彻底处理。由于故障块已超出国际边界，概述了一个大区域，用于对故障线路进行分类和彻底筛选。在对构造图和构造图进行地理参考之后，将断层构造数字化。做出了巨大的努力来复习文献，以收集板块运动学，跨故障块的GPS约束以及重大事件期间的滑移感测的相关数据集。通过仔细考虑各个断层的几何形状和地震构造环境的影响，仔细检查以区分地震活动性。断层线的地震活动特性被用于归因于“地震指数”，该指数有助于将潜在断层从I（最不活跃）到V（高度活跃）进行排序。准备了内核密度图，以吸引特定幅度级别的断层谱系的脆弱口袋。