I don't think that it is strictly related to the Ring of Fire alone. It is just that that particular area of the planet is, shall we say, a bit more obvious in its seismic activity.
Houston is riddled with faults and Northwest Houston is apparently sinking.
New York Has a fault right under 125th street.
Detroit & Chicago
Close enough to the New Madrid and Wabash Vally Fault Complex/Seismic Zones in the Reelfoot Rift, that there could easily be undiscovered tangential faults. There could even be undiscovered fault complexes further north, as it has been noted that New Madrid activity is slowing and Wabash Vally is increasing. Like something is moving north.
Point of note: the two big quakes in New Zealand recently were on a previously undiscovered fault. I'd be curious to see what the status of other seismically active areas is in WA. Places like Iceland, the north Mediterranean and the Horn of Africa.
My research into this for the reply and for a fan fic I am working on revealed the Brevard Fault Zone in Atlanta. Cuts right through northwest metro, parallel to the Chattahoochee river and apparently the southeast border of my county. Snap.
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