Seismotectonics of Shallow-Focus Earthquakes in Venezuela with Links to Gravity Anomalies and Geologic Heterogeneity Mapped by a GMT Scripting Language

This paper presents a cartographic framework based on algorithms of GMT codes for mapping seismically active areas in Venezuela. The data included raster grids from GEBCO, EGM-2008, and vector geological layers the USGS. were iteratively processed console GMT, converted by GDAL, formatted, mapped geophysical visualisation; QGIS was applied mapping. We analyzed 2000 samples earthquake events obtained IRIS seismic database with 25-year time span (1997–2021) order to map seismicity. approach linking geological, topographic, using scripts aimed correlations among phenomena, tectonic processes, setting, seismicity, earthquakes. practical application consists automated visualization risks hazards mountainous region Venezuelan Andes. proposed method integrates state-of-the-art GIS techniques, which demonstrated its effectiveness as tool spatial datasets rapid processing an iterative regime. In this context, find similarities between regional distribution topographic setting is essential hazard risk assessment. study can serve basis predictive analysis geologically vulnerable regions addition technical demonstration algorithms, also contributes assessments South America. present full used GitHub repository.