How tsunamis are formed 

Tsunamis are formed by plates rubbing together and pressure and force.It will be clam water then it will start to be a huge wave then its called a tsunami. Also it can be violent to humans and nature.    

Types of tsunamis

 Their are 2 types of tsunamis one is called a tidalwave and tidalbore sometimes you will feel vibration in the water and lots of things as well also all of them can go up to five feet tall and lots bigger

Effect On People And Land

Tsunamis can hit coastlines and buildings and sweep people off their feet and make the glass break and destroyed.