We combine observations from seven satellites and more than 50 ground magnetometers to study a series of impulsive ground magnetometer events that originated in response to sudden solar wind plasma and interplanetary magnetic field variations on an otherwise quiet day. We demonstrate that the events were global and conjugate. We use high time resolution geosynchronous magnetometer data to determine the origin, velocity, and direction of propagation of the transient events in the magnetosphere. We show that the transient events propagated antisunward but that the IMF orientation controlled the direction of their propagation near local noon in the sense predicted by the dynamic pressure pulse model.