NASA detects two new Mars-quakes on the Red Planet The two largest quakes detected by NASA's InSight appear to have originated in a region of Mars called Cerberus Fossae. (Source: NASA/JPL-Caltech/Univ. of Arizona.) By Joshua Morales | April 3, 2021 at 2:48 PM MST - Updated April 3 at 2:48 PM TUCSON, Ariz. (KOLD News 13) - Two more Mars-quakes have been detected on the Red Planet. According to NASA, its InSight lander detected the quakes in a location on Mars known as Cerberus Fossae, and it is the same area where two other quakes were detected earlier in the mission. The space organization says the quakes were of magnitudes 3.3 and 3.1, a little weaker than the earlier ones. However, this year’s Mars-quakes have been the best at probing the interior of the planet, according to NASA.