A method for performing a hydrocarbon production action on an earth formation includes: obtaining a first vertical seismic profile (VSP) of the earth formation before a stimulation treatment is applied to the earth formation, the first VSP having first seismic data of a seismic property of received first seismic waves, and obtaining a second VSP of the earth formation after the stimulation treatment is applied to the earth formation, the second VSP comprising second seismic data of the seismic property of received second seismic waves. The method further includes quantifying a difference between the second seismic data and the first seismic data and performing the hydrocarbon production action using the quantified difference.