This is a super interesting thing that I can't wait to see what that means...
Unlike most marsquakes, which have been minor tremors triggered by meteorite impacts near InSight, S0976a was a deep rumble that originated from the opposite side of Mars as the robotic seismologist, in the western half of Valles Marineris.
Wow, Mars is still alive down there. A deep quake from Valles Marineris is wild - makes you wonder what else is still moving under the surface. Can't wait to see what we learn next.