Mars seismology

For the first time, from early 2019 to end of 2022, Mars shallow and deep interior have been explored by seismology with the InSight mission. Thanks to the performances of its seismometers and quality of their robotic installation on the ground, more than 1300 seismic events have been detected, including about 90 marsquakes at teleseismic distances, with Mw from 2.5 to 4.7, and 6 impacts, the largest ones with craters larger than 130m. A large fraction of these marsquakes occur in Cerberus Fossae, demonstrating active regional tectonics. Records of pressure induced seismic noise and of heat flow penetration seismic signal have provided subsurface models below the lander. Deeper, direct and secondary body wave phases travel time, receiver function and surface waves analysis have provided the first interior models of Mars, including crustal thickness and crustal layering, mantle structure, thermal lithospheric thickness and core radius and state.