Abstract: A sealing assembly for use in a geophysical cable connector having two interconnecting bodies each having a plurality of coacting electrical connectors and a cover connected to each body by a plurality of screws. A bladder gasket is positioned between each body and each cover with a plurality of openings around the outer periphery for receiving the screws. The gasket includes a sealing ridge extending outwardly from one side of the gasket entirely around the gasket and spaced inside the opening. Each body includes a recess inside of the screws for receiving the sealing ridge. The gasket is enclosed inside of the ridge for sealing the interior of the body from the environment. The sealing ridge may be semi-circular shaped or trapezoidal shaped in cross section.