7416 Seismic activity at man-made reservoirs The Paper refers to many cases of known seismic activity followingthe construction to these occurrences are of dams and impounding of reservoirs. Features relating is of described and reference made to previous studies of the effects impounding, and the reasons quoted from time to time for the occurrence of seismic activity. These factors are then considered in relation present knowledge of the state of stress in to the earth's crust, and a theory is developed which seems to account for the known facts. It isthenproposedthatfutureengineeringandgeologicalsiteexploration shouldincludeseismic,rockstress,watertableandpermeabilitymeasurements... 7416 Seismic activity at man-made reservoirs The Paper refers to many cases of known seismic activity followingthe construction to these occurrences are of dams and impounding of reservoirs. Features relating is of described and reference made to previous studies of the effects impounding, and the reasons quoted from time to time for the occurrence of seismic activity. These factors are then considered in relation present knowledge of the state of stress in to the earth's crust, and a theory is developed which seems to account for the known facts. It isthenproposedthatfutureengineeringandgeologicalsiteexploration shouldincludeseismic,rockstress,watertableandpermeabilitymeasurements...