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Explain the process of formation of a tsunami. Also, mention the tsunami preparedness and mitigation efforts taken by the government.
Tsunamis occur when an underwater disturbance, such as an earthquake or volcanic eruption, causes large ocean currents and powerful waves. The government plans to reduce the impact of tsunamis on coastal communities through early warning systems, public education and infrastructure planning. A tsunaRead more
Tsunamis occur when an underwater disturbance, such as an earthquake or volcanic eruption, causes large ocean currents and powerful waves. The government plans to reduce the impact of tsunamis on coastal communities through early warning systems, public education and infrastructure planning.
A tsunami is a powerful wave caused by the sudden displacement of a large body of water, usually due to an underwater earthquake, volcanic eruption, earthquake or meteorite impact. Below is a detailed description of the design process:
Underwater impact: Mostly caused by underwater earthquakes, where tectonic plates suddenly shift and move the ocean vertically. The movement of the current pushes the water upward, creating large waves on the surface.
WAVE PRODUCTION: When water moves outward from the affected area, it creates waves that can travel at high speeds across the ocean. These waves can reach speeds of up to 800 km/h in deep water, but are generally small in height.
Beneficial for the beach: When a tsunami approaches a shallow shore, the waves slow down but water collects, causing the waves to rise very high. This is when tsunamis can be very destructive, as they can hit low-lying coastal areas with waves tens of meters high.
Governments and coastal communities have implemented various measures to respond and mitigate the effects of the tsunami:
Early Warnings: Many countries have established tsunami warning systems that use seismometers and buoys to detect underwater earthquakes and monitor changes in sea level that signal a potential tsunami. These systems help provide timely warning to coastal communities.
Public Education and Awareness: The government conducts public awareness programs to educate people about tsunamis, warning signs, and appropriate responses. This includes evacuation routes and procedures. Land Use Planning: Follow coastal zoning and land use regulations to limit development in tsunami-prone areas. This helps reduce the impact on human life and property.
Building Regulations and Infrastructure: Building codes are implemented to ensure that buildings and structures in coastal areas are tsunami-resistant. This includes raised foundations, tsunami-resistant barriers and safe escape routes.
International Cooperation: Countries in tsunami-prone areas often cooperate with each other and with international organizations (such as the Pacific Tsunami Warning Center, PTWC) to share information, technology, and best practices in tsunami preparedness and mitigation.