Seismic investigations in Wyoming as part of the Wagon Wheel definition studies

As part of the Wagon Wheel definition studies, seismic investigations were conducted in Wyoming by personnel of the United States Geological Survey, Las Vegas, Nevada. From March 22, 1973 to February 22, 1974, a seismograph station recorded seismic activity at five different areas in the vicinity of the proposed Project Wagon Wheel location in the Green River basin of Wyoming. The short period vertical component station, located near and around ground zero (GZ) operated for approximately two months at each of five locations at distances from 3 to 21 km from GZ. 

One hundred and twenty nine (129) natural and man -made events identifiable as located within a radius of 100 km from the station were recorded during tile eleven-month study. Calculated magnitudes ranged from M_L - 0. 6 toM_L 2.6.