Tsunami refers to long oceanic waves that occur because of displacement of large amounts of water bodies. The displacement of water is due to underwater earthquakes, landslides, volcanic eruptions and other seismic events that cause disturbances either below or above the water surface causing the displacement. Tsunamis move at very high speeds almost 500 to 1000 kilometers per hour. This affects other areas that are very many kilometers away from where the tsunami occurred. They do not also loose speed, for instance when tsunamis occurred in South Asia at a certain speed, it occurred with the same speed fourteen hours later in East Africa. In addition, they have long wavelengths and can take long time before the second tsunami occurs after the first one. For example, this happened in South Asia where many people died in the second occurrence as they tried to help the survivors of the first tragedy. Tsunami has high heights, which can be as high as thirty meters and people in the deep ocean do not feel them. This is the reason as to why the tsunami that occurred in Japan was not felt by anglers were not attacked by the tsunami that occurred in Japan. However, when they occur they cause great damage of properties and loss of lives.This is the reason as to why nations should be prepared on how to manage such kind of crisis. In this paper, I am going to examine the different tsunami emergency management systems both international and regional. In addition, I will give comments on how the government and individuals should best be prepared for the disaster. Tsunami emergency management systems Tsunamis are not common occurrence and not all earthquakes cause them. However, when they occur they are very serious and cause great damage. Therefore, it is very important for the government and individuals to know how to manage them. The government has developed many systems to help it as well as individuals manage them. Tsunami emergency management system detects and predicts tsunami in addition to warning individuals and government in good time before the onset of the disaster. These systems are discussed below. Tsunami Warning System This system detects by use of sensors and gives warning using communication infrastructure to prevent loss of life, economy and property. There are two main types of tsunami warning system. These are International Warning System (IWS) and Regional Warning System (RWS).I will start by discussing International Warning Systems (IWS). International Warning Systems (IWS) There are many IWS as discussed below involved in management of tsunami. Pacific Ocean Tsunami Management System This network consists of seismic monitoring stations and sea-level gauges that detect earthquakes and abnormal changes in sea level that can cause tsunami. After detecting a tsunami, they give warning to those living near the coastline along the predicted path of tsunami and its arrival time. The warning system advices people to leave the coastline immediately they get the warning and move to higher grounds that are ten meters above sea level or move inlands. Additionally, they are advised not to return to the coast until requested to do so by the warning agency either through radios, televisions or through other means. Those involved in finding out which areas are prone to tsunami are able to do so by assessing those areas along the coastlines long before the tsunami occurs. In 194