Soil properties such as density , water and mineral content are known to play important roles in determining losses of the radio wave propagation [1] . When and if these physical properties of the host soil change during the evolution of a geo-event , they in turn affect the transmission quality and strength of the radio waves within the region of the event [2]. Figure 1 shows the concept of pervasive subsurface monitoring with wireless signal networks for detection of landslide and chemical plume/oil leakage