There are a number of somewhat inactive faults that run up through ND, SD and NE.
I noted shaking/rumbling ground movement from several Central/South American quakes of larger magnitude when I was a missile crew member at Minot ND. It was enough to cause the suspended crew capsule to noticably sway and to put all of the Minuteman missiles into a gyroscopic safe/locked mode.
Back in the 80s I was on Alert at C-0 (Grand Forks) when the Missouri quake hit.
We did not feel it in the capsule but all the missiles in four Wings went into PIGA Leveling.