How Volcanic Activity Can Spawn Tsunamis No earthquakes were recorded before the tsunami struck, the Indonesian authorities said. But there had been an eruption on the volcanic island of Anak Krakatau about half an hour before. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:U.S. Air Campaign in Yemen Killed Guantánamo Ex-PrisonerTurkish Referendum Has Country Trading Barbs With Germany Over Free SpeechBahrain Moves to Dissolve Major Opposition GroupISIS Appears to Lose Ground in Fight for Its Raqqa BaseU.K. Weighs a Law to Ease the Pain of Mandatory Heels at WorkNew Travel Ban Garners Same Verdict in Middle East: A Slap at Muslims