1. A method of evaluating an earth formation comprising: (a) activating a seismic source at at least one source position and generating seismic waves into said earth formation, (b) receiving three components of seismic data at at least one receiver position, a portion of the received seismic data resulting from interaction of the generated seismic waves with a portion of the earth formation not on a vertical plane passing through the at least one source position and said at least one receiver position; (c) simultaneously processing the three components of the seismic data using a traveltime from the at least one source position to at least one image point in the earth formation and a traveltime from the at least one image point to the at least one receiver position.