Tsunami is one of the huge disasters that can destroy large areas. The wave is high enough to sweep the coastal and the further regions after a huge earthquake even though it is not always happening after the earthquake. Tsunami warning zones are categorized to minimize the risk of damage.
The community that lives in this zone should prepare themselves with excellent mitigation skills. The government and stakeholders have a role in preparing a tsunami warning system that can help people to evacuate themselves before a tsunami comes. What kind of preparation to do?
Tsunami Warning Zones: Hazard and Safe Zone
The Most Hazard Zone
Tsunami can destroy the land, but how far does it go? The most hazardous zones when the tsunami comes are coastal areas such as beach and bay. These areas will be affected in seconds. Most people cannot swim in or surf on it because the waves contain debris that it swept away, even the trees.
The height of tsunami waves can be different. The scale of earthquake and other activities on the sea floor are the reasons of its happening. It is the most dangerous tsunami for the people if they cannot mitigate it beforehand.
Tsunami warning zones in this area should be working well because the communities who live in the coastal will get the effect from this disaster. With a fast warning, they can evacuate themselves by going to a higher place to avoid the waves.
The Safe Zones from Tsunami
The safest zone from a tsunami event is the area with greater elevation, such as more than 30 meters above sea level. However, it is better to go to further areas where it is far from the shore when the tsunami warning is alarming.
The local authorities should determine the evacuation zones that people can flee after the warning system is issued. Determining the safe zone considers the elevation, safety, risk, and infrastructure according to the modeling. The space should be free from the event.
Before evacuation, people have to know about the warning. Local authorities can depend on an SMS broadcaster that can send many messages to people’s smartphones quickly and efficiently. After that, they can follow evacuation orders safely.
Tsunami Risk Assessment in The Zones
Identifying tsunami zones is crucial to understanding the impact of tsunami events on the areas that may be affected. Different shores and coastal areas may have different effects because of the landform. Therefore, the steps of mitigation and evacuation should be adjusted.
Creating Maps
Using the maps to predict how tsunamis can go farther and destroy the area is an important assessment. The government and stakeholders can use modeling to decide on tsunami warning zones. The modeling uses historical data and other studies to release the scenarios.
Creating simulations by using maps also helps authorities to decide evacuation zones and how many people must get warning systems to their phones. Certain distances from the shore are the priority, especially when the potential tsunami can destroy larger areas.
Tsunami Threats
Tsunami threats could be from different sources. It is not always because of the earthquake, but also volcanic activities underwater and landslides. The evaluation according to historical data should be assessed to see which threat may occur in the future and have the biggest impact on tsunami warning zones.
Tsunami in Past Event
Reviewing tsunami events in the past helps to get a better assessment. There are many kinds of data that should be collected, such as geological investigations, written data from books, findings in archaeological forms, etc. The frequency of tsunamis can predict the tsunami that may occur in the future.
Tsunami Warning System
The areas in tsunami zones had better have good warning systems. This system allows people to get pop-up notifications, so they can evacuate themselves faster once the potential tsunami is coming. SMS blast is the solution that authorities can consider.
The authorities should pay attention to the people who live in tsunami warning zones. They have to get fast notifications such as SMS blasts about tsunami warnings. SMS broadcaster device is a tool to send many messages to people, so they can evacuate fast to farther and higher areas.
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