Subsidence Monitoring Using Seismic Activity

摘要

The occurrence of seismic events due to developing zones of subsurface subsidence was monitored using a near-surface geophone array. The active subsidence site is located in a residential area of northeast Colorado Springs, Colorado. Although a considerable number of events were observed during the ten-month monitoring interval, the source of only a few could be located. Despite the problems inherent of subsidence sites, results indicate that the geophysical method has the potential to detect activity that is indicative of initial subsurface subsidence, i.e., failure of the abandoned mine roof.