Can underwater sonar canons stop a tsunami in its tracks? - UPI.com:
UPI reports: "New research suggests acoustic-gravity waves, or AGWs, could be used as a defense against deadly tsunamis. [...] 'Within the last two decades, tsunamis have been responsible for the loss of almost half a million lives, widespread long-lasting destruction, profound environmental effects and global financial crisis,' Usama Kadri, a researcher at Cardiff University's School of Mathematics, said in a news release. 'Up until now, little attention has been paid to trying to mitigate tsunamis and the potential of acoustic-gravity waves remains largely unexplored.'"