Multi-stage hydraulic fracturing has become a common practice to extract oil and gas from unconventional resources. Microseismic monitoring is one of the main tools to evaluate the effectiveness and conformance of hydraulic fracturing. Multiple variables influence the Stimulated Reservoir Volume (SRV), which lead to various well performances. This paper presents an integrated and thorough workflow to evaluate the efficacy of hydraulic fracturing designs. The techniques involved are "location zero" event density mapping and mapping (kernel density estimation - KDE) of microseismic events at sequential time intervals during the treatment of individual completion stages. Data from a "ground truth" slant core is integrated to substantiate the result. The maps provide a detailed understanding of the characteristics of SRV, namely the spatial distribution, half length, growth height, geometry, and growth downwards/upwards habit. The methodology reveals how the proppant/fluid loading, cluster spacing, number of clusters and frac sequences influence the SRV.