Hot spot analysis and high/low clustering of earthquakes in the Zagros region (Iran)
عنوان دوره: بیستمین کنفرانس ژئوفیزیک ایران
کد مقاله : 1914-NIGS
نویسندگان
عضو هیأت علمی گروه زمین شناسی، دانشکده علوم زمین، دانشگاه دامغان
چکیده
In this research, statistical point pattern analysis of earthquake locations in the Zagros region of Iran during 1976-2019 was carried out. For this purpose, Local Getis-Ord’s Gi* index was estimated and computed for the data catalog. Results obtained indicate a completely clustered pattern of epicenters for the whole region and also indicate that earthquakes with greater magnitudes show higher degrees of clustering. Also, a spatial autocorrelation of higher values of magnitudes are observed. Hot spot areas presented in this study for this region well spatially correlate with the trends of major active faults of the region, which can be interpreted as areas with higher crustal strength.
کلیدواژه ها
Title
Hot spot analysis and high/low clustering of earthquakes in the Zagros region (Iran)
Authors
Seyed Naser Hashemi
Abstract
In this research, statistical point pattern analysis of earthquake locations in the Zagros region of Iran during 1976-2019 was carried out. For this purpose, Local Getis-Ord’s Gi* index was estimated and computed for the data catalog. Results obtained indicate a completely clustered pattern of epicenters for the whole region and also indicate that earthquakes with greater magnitudes show higher degrees of clustering. Also, a spatial autocorrelation of higher values of magnitudes are observed. Hot spot areas presented in this study for this region well spatially correlate with the trends of major active faults of the region, which can be interpreted as areas with higher crustal strength.
Keywords
seismicity, Seismotectonics, Zagros, Spatial analysis, Earthquake clustering