The catastrophic earthquake.
A big earthquake has hit new Madrid in the winter of 1811and 1812. Three earthquakes with moments magnitudes between 7.5 and 8.0 stuck. Few people lived and there were about 10.000 injured in the region at the time. Studies of the geologic record showed that major earthquake has happened, at least twice before 1450.
NEFELI TLOUPA AND TASOS DOROS