Patent ID: 8391103

Claim:
A method for evaluating subsurface formations for specular and non-specular seismic events, comprising: deploying at least two intersecting seismic transducer lines above an area of the subsurface to be surveyed, each line including only spaced apart seismic transmitters on one side of the intersection and only spaced apart seismic receivers on the other side thereof; on each line, actuating one of the transmitters, detecting signals at one of the receivers, and repeating the actuating the transmitter and detecting signals for each of the remaining receivers; on each line, repeating the actuating and detecting signals at each of the receivers for each remaining transmitter; processing the detected signals from each line to enhance specular seismic events; processing the detected signals from each line to enhance non-specular seismic events; and at least one of storing and displaying the specular and non-specular events to enable identification of shallow geohazards.