There are many effects and responses, both short term and long term, when tsunamis happen.
One of the main short term effects of a tsunami is flooded land which could ruin crop field so that people would not have food and could starve to death; this is also a long term effect. Another effect is ruined buildings, however, this leads to a long term effect which leaves people homeless for a long time leaving them vulnerable to the elements, such as fires that could start if nuclear power stations explode. Blocked roads are also a problem because help can’t get in or out of the affected area leaving people, possibly injured, stranded with nowhere to go because their homes were destroyed.
The short term responses are to get people evacuated to higher ground so that people aren’t drowned in the masses of water that take over the land. Another is finding somewhere else to live until all of the damage is repaired so that they aren’t left alone exposed to the cold.
Long term effects include that the building could be knocked down which could leave people homeless for a number of months or even years so they could potentially lose their lives from lack of food, drink and warmth. People who survive the initial wave could then become ill because of the water that they could have taken in but also because of the lack of heat the have had so then they could develop and illness like hypothermia and possibly die because of it.
Another long term effect of this is that people lose jobs and business’s resulting in a lack of money to provide resources for their family.
The responses to these long term effects include rebuilding everything that was destroyed so that there is more chance of people surviving. Another long term response is to clear the roads so that people can get in to start rebuilding and recover any people who are still in that area.
Probably the most important response is to rebuild hospitals, so that injured or critically ill people can get the treatment needed. Also, repair generators so that places have power and can use all the equipment they need so that everyone is safe. To ensure that nothing of this extent happens again they would need to either rebuild or restructure the sea walls and make them higher. The affected country should warn other countries that it could affect so that they aren’t at as much risk as they were.
Video here:
https://www.youtube.com/watch?v=j0YOXVlPUu4