Hot spot analysis and high/low clustering of earthquakes in the Zagros region (Iran)

In this research, statistical point pattern analysis of earthquake locations in the Zagros region of Iran during ۱۹۷۶-۲۰۱۹ 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:

Seismicity ، Seismotectonics ، Zagros ، Spatial analysis ، Earthquake clustering