Israel’s first tsunami wave simulation, named ''Blue Tidal Wave''. April 4, 2016. (credit: CORINNA KERN/FLASH90) Tsunamis are a series of very long waves, typically caused by an earthquake.

An initial tsunami wave approximately 1 meter (3.2 feet) high made landfall within 30 minutes of the earthquake, the Associated Press reported, citing Japanese public broadcaster NHK TV.

The Japan Meteorological Agency (JMA) initially warned of possible tsunami waves of up to one metre ... it is important to keep in mind that an earthquake could occur at any time, and it is ...