The reason for Japan's frequent tsunami disasters is mainly due to the country's location on the Pacific Rim seismic belt, an area where earthquakes and volcanic eruptions are frequent, some of which lift or sink the seabed crust and cause tsunamis. In addition, Japan's geographical location also makes it vulnerable to tsunamis, and most of Japan's cities and towns are located in coastal areas, making tsunamis particularly vulnerable to causing massive damage to people and property. For these reasons, Japan has been developing tsunami warning systems and defence facilities to minimize the impact of tsunami disasters.
Japan often issues tsunami warnings because the country is located on the Pacific Rim seismic belt, and earthquakes and tsunamis are common natural disasters. Japan has an advanced seismic monitoring system and cooperates with other countries and regions to share earthquake and tsunami data. Once an earthquake that could trigger a tsunami is detected, the Japan Meteorological Agency issues a tsunami warning so that people can take timely escape measures. These warnings are usually conveyed to the public through television, radio, mobile phone text messages, etc. Japan's tsunami warning system has played an important role in reducing casualties and property damage.