Abstract:In this era of globalization, the continuous increase in the frequency of major natural disasters seriously threatens production and lives. Although the frequency of earthquakes, which are major natural disasters, is relatively low, earthquakes result in great economic losses and casualties; hence, it is very important to practically and theoretically forecast earthquake tendencies. In this paper, ternary, quaternary, and pentanary commensurability calculations are used to predict the intensity of seismic signals of MW ≥ 6.0 earthquakes in Venezuela and surrounding areas for approximately 30 years, and then the butterfly structure diagram and commensurability structure are used to strengthen the time symmetry analysis. Based on the laws of longitudinal and latitudinal migration and space migration of seismic sources, the relationship between the earthquake and the acceleration of the earth rotation is creatively analyzed. It is concluded that (1) in the study area, the strongest signal of MW ≥ 6.0 earthquakes is in 2018, and relatively strong signals are in 2017 and 2019; (2) MW ≥ 6.0 earthquakes are likely to occur in 10°-11°N and 63°-65°W; (3) the MW ≥ 6.0 earthquakes in Venezuela and its surrounding areas have a close relationship with changes in the earth rotation speed. This research can serve as a reference for analyses of earthquakes tendency forecast and provide some insights for future research.
