What is a tsunami?(VIDEO) : How Tsunami Happens : Tsunami Expalined

What is a tsunami?(VIDEO) : How Tsunami Happens : Tsunami Expalined: As per en.wikipedia.org/wiki/Tsunami A tsunami is a series of water waves (also called a tsunami wave train) caused by the displacement of a large volume of a body of water, usually an ocean, though it can occur in large lakes. Tsunamis are a frequent occurrence in Japan; approximately 195 events have been recorded. Owing to the immense volumes of water and the high energy involved, tsunamis can devastate coastal regions. A nice video that explains What is a tsunami?(VIDEO) : How Tsunami Happens : Tsunami Expalined: A powerful earthquake off the coast of Japan triggered a tsunami