8.4

Plot

The stories are the stuff of legend, and they are all true. In 1811 and 1812, three mammoth earthquakes measuring 8 on the Richter scale ruptured an area spanning twenty-four states and a third of the landmass of the United States. Lakes formed in Tennessee, church bells rang in Boston, and the mighty Mississippi ran backward. But today it's all a distant memory. Until the underground force reawakens.