by André Rousseau January 20, 2012 911truth.org [Updated 1/21/12 to correct figures 1a, 1b, 2a, 2b and 2c, originally uploaded without study author’s notations.] INTRODUCTION When major shocks occur at the Earth’s surface or at depth, waves of different types, magnitudes and speeds may move out from the source location. Such waves can be detected … Continue reading Were Explosives the Source of the Seismic Signals Emitted from New York on September 11, 2001?