A closer look at “Viking 2 Seismic Signal Reexamined: Possible Marsquake from Cerberus Fossae Region”, exactly as the source publishes it. A reanalysis of data from NASA's Viking 2 lander, which touched down on Mars in 1976, has uncovered a possible marsquake originating from the Cerberus Fossae region—an area known to have been seismically active decades later. The Viking 2 seismometer recorded only two ambiguous events during its mission, but new examination of one signal suggests it may have been a real quake.
Cerberus Fossae, a system of faults in Elysium Planitia, was the source of numerous quakes detected by NASA's InSight lander, which operated from 2018 to 2022. This finding extends the known seismic history of the region back by over 40 years, indicating that tectonic activity there has persisted for at least half a century. This listing links straight to the original page, where the content is available in full.