Evaluation of S1222a Source Parameters Based on Site Effect Simulation and Implication for the Event Origin

Estimating the rupture process of a quake constrains tectonic setting its source region. In terrestrial seismology, can be described with classical ω2 model. this study, we focus on one key parameter S1222a, corner frequency, to investigate origin. However, estimating frequency S1222a is complicated by S1222a's non-classical spectra which deviate from To explain spectra, take into account site effect at InSight landing site. Through numerical simulation, demonstrate that spectral fitting greatly improved after considering effect. We further estimated spectrum and stress drop S1222a. The obtained resembles values for regional earthquakes shallow moonquakes but differs Cerberus Fossae marsquakes, favors different origin marsquakes