Research links a 2021 marsquake to unexpected fault movement beneath Valles Marineris

Summary

New research shows that a powerful marsquake in 2021 came from Valles Marineris, the largest canyon in the solar system, and was triggered by unexpected movement in a fault line deep below the structure. The findings suggest that tectonic activity can still occur on worlds long thought to be geologically inactive.

Timeline

1. Live Science

   6 Nov 2026, 11:00 UTCSource ↗

   Live Science reports that new research traces a powerful 2021 marsquake from Valles Marineris to unexpected movement in a deep fault line, showing that tectonic activity can still occur on geologically inactive worlds.