Every day the Earth is bombarded with meteors both large and small, most disintegrating in the atmosphere. A few strike the surface. Mars has no significant atmosphere. Thus, how is the marsquake signal detected by the InSight Lander distinguished from a true marsquake versus a meteor impact somewhere else on the Martian surface?
NASA’s InSight Lander Detects Its First Marsquake | Planetary Science, Space Exploration | Sci-News.com
The SEIS (Seismic Experiment for Interior Structure) instrument on NASA’s InSight lander detected the faint seismic signal on April 6, 2019, the lander’s 128th Martian day (sol).