As a geologist with a focus on seismology, I can provide you with information on the state with the most earthquakes in the United States. The Alaska is known to have the highest number of earthquakes in the U.S. due to its location along the Ring of Fire, which is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. However, it's important to note that the frequency of earthquakes does not necessarily correlate with their magnitude; smaller earthquakes are more common than larger ones. When discussing the United States, California is also a state that experiences a significant number of earthquakes due to its location along the San Andreas Fault. Additionally, Hawaii is prone to earthquakes due to its position on the Pacific Plate, which is volcanically and seismically active. The USGS report you mentioned highlights that human-induced activities, such as fracking, have been linked to an increase in earthquake activity in some regions, notably Oklahoma. However, even with the increase in human-induced seismicity, the natural seismic activity in Alaska remains the highest in the country. read more >>

They are: Alaska, Arkansas, California, Hawaii, Idaho, Illinois, Kentucky, Missouri, Montana, Nevada, Oregon, South Carolina, Tennessee, Utah, Washington and Wyoming. The USGS notes in its report that fracking may be to blame for a sizeable uptick in earthquakes in places like Oklahoma.read more >>