I’m close to the New Madrid too in TN. We have a lot of small quakes but nothing severe in my memory.
Nemaha Ridge (running from around Lincoln, NE through central OK) makes me somewhat nervous because of its location and configuration. Not much activity there in the recent geological past. Then again, that’s what the citizens of Pompeii and Herculaneum said about Vesuvius.
Lengthy, dry piece on it from the usgs site, if anyone is interested:
https://pubs.usgs.gov/of/1988/0450d/report.pdf