As said above, InSight lander detect about 450 quakes on the Surface of Mars. In my opinion, it's not real surprise for paleontology and geology. Yes, we don't expect liquid mantle at this planet, but we recorded the same quakes at Moon during Apollo missions, e.g.Article Lunar Seismology: An Update on Interior Structure Models
Thank you Dr Sergey Krasilnikov for your valuable response which I grew with. I also appreciate your sharing of the published article on lunar seismology. Best regards