Thermal contraction, internal magma pressure , or meteorite impacts. These are a few suspects for the cause of Earthqua.., ahem, Marsquakes. The behavior of those seismic waves that travel through the planet can help us understand what is going on beneath the surface of Mars. These movements will be measured by NASA’s Insight Lander’s Seismometer. Thanks to NASA’s Jet Propulsion Laboratory for this info, stay tuned for updates!