| Summary: | The potential seismicity of Venus has been discussed over recent decades. Even though Venusian seismic recordings are not available, measurements of sulfur dioxide (SO2) were made using sensors and were related to volcanic activity. Seismicity related to terrestrial volcanoes has been correlated with tidal effects and Venusian volcanoes to gravitational and thermal tides by solar heating. To analyze the relationship between deep seismicity, volcanic activity, and gravitational movements an analysis of time series and spectral approaches was performed. The results showed that the frequencies of SO2 emissions on Venus and Earth have concentrated in the period of ∼7.5 months and its divisions, ∼2 and ∼4 months. Venus completes its orbit every ∼7.5 months and passes between the Earth and the Sun near the quadrants. In addition, when the Earth presents higher volcanic activity, deep seismicity and Venusian SO2 decrease, and vice versa. Thus, volcanic activity on Venus could be better related to the triggers of deep earthquakes than terrestrial volcanic activity. Machine learning results presented the highest correlation with Venusian eccentricity (EC) and the argument of Periapsis (W) orbital parameters. Venusian SO2 values and deep earthquakes showed concentrations in 2009 and 2010, years where occurred repeated conjunctions, related to EC, and maximum values of orbit inclination (W). The fact that the values of SO2 emissions on Venus are more connected to the EC parameter and SO2 emissions on Earth to the W parameter may be related to perturbations that make each body move in its orbit around the Sun.
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