Largest Earthquakes in the United States
Very interesting info.. People think of the obvious faults we keep hearing about.
One of the most devastating quakes America ever had was New Madrid Missouri. A rating of 7.5 to 7.7 was only and estimate, as their was no real equipment to record it at the time..
Native Americans reported whole forests vanishing.. Rivers changing course.
Do not forget New England. Major fault lines there including under Manhattan N.Y..