 The 1858 Sioux City earthquake was followed relatively soon after by another moderately strong one on October 9, 1872. That quake was felt by a 3,000-square-mile area, including adjoining portions of the Dakotas. Just five years later, on November 15, 1877, another earthquake was felt throughout Iowa and eastern Nebraska and in parts of Missouri, Kansas, the Dakotas, Wisconsin, and Minnesota.