Unveiling the Source of Mars' Mightiest Quake

Scientists have determined that the strongest-ever quake detected on Mars was not caused by an asteroid impact, but rather by tectonic forces within the planet itself. The magnitude 4.7 quake, recorded by NASA's InSight lander in May 2022, was five times stronger than the previous record. Unlike most marsquakes, which last for about an hour, this quake continued for a record six hours. The findings suggest that Mars is more seismically active than previously thought, challenging the belief that the planet is too small and cold to host tectonic processes. The research may help in understanding potential safe zones for human habitation on Mars.