This paper presents the design and execution of an in-situ dynamic test program evaluating the effect of strain history on the in-situ dynamic response of plastic silt deposits employing mobile shaker and controlled blasting techniques. In order to obtain the elemental viewpoint, first a series of staged, constant-volume stress-controlled, and strain-controlled cyclic direct simple shear tests were performed on both intact and reconstituted plastic silts to examine the evolution of cyclic resistance resulting from repeated dynamic loading events. The influence of governing parameters, including post-cyclic densification, soil fabric, shear strain magnitude, potential bias in shear strain accumulation, and selection of failure criterion on the development of cyclic resistance in silts has been examined. The full-scale, in-situ dynamic testing program characterizes and compares three-dimensional dynamic response of a plastic silt deposit to multi-directional loading. Changes in soil fabric were quantified using small-strain shear wave velocity measurements performed before and after each stage of dynamic testing and were linked to the observed increase and decrease in threshold shear strain to trigger excess pore pressure development in soil. Findings from this study may elucidate potential implications for evaluating the effects of aftershocks following a mainshock earthquake event.