Red circles are earthquakes that occurred after 1972 from the USGS Preliminary Determination of Epicenters catalog. These are not like the faults in California, which last had a major earthquake in 1994, when the magnitude 6.7 Northridge temblor killed 57 people and caused $20 billion in damages..
A large event felt on the East Coast that is sometimes regarded as the fourth principal earthquake of the 1811-1812 sequence.
But a spot in the heart of the United States burns just as bright. New Madrid Seismic Zone (NMSZ), region of poorly understood, deep-seated faults in Earth’s crust that zigzag southwest-northeast through Arkansas, Missouri, Tennessee, and Kentucky, U.S.