General stress and faulting trends have been retrieved through the analysis of mining induced microseismic events (M<0) at two sites, related to an mN 2.6 rockburst, and an excavation at depth. comparison of results obtained through principal component analysis (PCA) of seismicity, focal mechanism, and stress inversion, with in-situ measurements of stress and structural mapping data show that under stable stress conditions, the P, B, T, and stress inversion axes are consistent with in-situ measurements of stresses; stress inversion and PCA fault-planes lie within 10 to 20¿ of the most significant mapped features at the sites; and the PCA technique provides a robust approach for the determination of fault-planes. ¿ American Geophysical Union 1993