October 4, 2015 THE COAL SPEAKER 900 Foot Megatsunami? Scientists Discover Tsunami Evidence in Africa.. A new study reveals evidence how an ancient 900 foot megatsunami wave caused widespread destruction in Cape Verde. It happened around 78,000 years ago FacebookTwitter 900 Foot Megatsunami? Scientists Discover Tsunami Evidence in Africa.. A new study reveals evidence how an ancient 900 foot megatsunami wave caused widespread destruction in Cape Verde. It happened around 78,000 years ago FacebookTwitter Tweet Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related