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 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 Tweet Related Discover more from The Coal Speaker Subscribe to get the latest posts sent to your email. Type your email… Subscribe