Seismotectonics of Southern Calabria Terrane(South Italy)

作     者：Vincenzo TRIPODI Anna GERVASI Mario LA ROCCA Federica LUCA Francesco MUTO Vincenzo TRIPODI;Anna GERVASI;Mario LA ROCCA;Federica LUCà;Francesco MUTO

作者机构：National Research Council of Italy(CNR)—Research Institute for Geo-Hydrological Protection(IRPI)Rende 87036Italy National Institute of Geophysics and Volcanology(INGV)National Earthquake Observatory SectionRoma 00143Italy Department of BiologyEcology and Earth Science(DiBEST)University of CalabriaRende 87036Italy 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2022年第19卷第11期

页      面：3148-3162页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：Universita della Calabria 

主　　题：Calabria Seismicity Tectonics Earthquakes 

摘      要：Seismic data of earthquakes recorded during the last 40 years in southern Calabria have been compared with geological data in order to obtain a seismotectonic picture of the area. We sought for any possible correlation between the main regional tectonic structures, the distribution of earthquake hypocentres and the focal mechanism of earthquakes with magnitude(Ml)≥3.Studies of historical and recent seismicity and analysis of geological structures allowed to define the main shear strips on a regional scale. More than 2600 earthquakes with 1.5 ≤ Ml ≤ 4.5 have been considered. The focal mechanisms of earthquakes with Ml≥3 have been compared with the kinematics of known faults and used to give insight on the current active stress field. From the analysis carried out it was possible to expand the cognitive framework regarding the activity of the main tectonic structures present in the area. This study also served to identify areas of high seismicity which do not correspond to any evidence of tectonic structures on the surface, and areas where recognized tectonic structures have not shown any seismicity during the last decades. These cases could be the subject of future investigation in order to correctly assess the seismic hazard in Calabria.This task is important in the context of seismic hazard evaluation and mitigation.