Q:

What are the effects of a tsunami?

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Quick Answer

The effects of a tsunami include loss of human and animal life, devastating property damage, severe flooding and disease. There are also environmental effects such as contamination of soil and water, a permanent change to the landscape, solid waste and disaster debris, and hazardous materials and toxic substances.

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What are the effects of a tsunami?
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Full Answer

Tsunamis are giant waves caused by undersea earthquakes, landslides or volcanic eruptions. The severity of their effects depends on a number of factors, namely the magnitude of the earthquake, landslide or volcanic eruption, along with its distance from shore. Small and undetectable tsunamis occur almost every day with little to no effect, but larger tsunamis have devastating effects to life and land that are often irreversible.

The central effect of large tsunamis is massive loss of human life. With no time to escape, tsunamis cause near instant death, usually by drowning, but also by collapsing buildings, electrocution and more. Since 1850, tsunamis have killed more than 430,000 people. The March 2011 tsunami in Japan left a total of 18,550 people killed and/or missing.

The severe flooding that occurs as a result of a tsunami also damages sewer systems, water supplies and soil. Stagnant and contaminated water leads to malaria and other diseases, causing illness, infection and death to spread rapidly. Soil becomes salinized from sea water and debris, effecting long-term yields of crops.

The tall and fast-moving waves also damage property and permanently alter the landscape, sometimes wiping out entire islands. They destroy everything in their path, including buildings, trees, power lines, bridges, cars, boats and more, leaving behind them a mass of solid waste and debris that is almost impossible to clean up. They also destroy animal life, insects, plants and natural resources. Hazardous materials and toxic substances are also a concern, as asbestos, oil fuel and other industrial raw materials and chemicals often leak as a result of property damage.

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Related Questions

  • Q:

    What causes a tsunami?

    A:

    Tsunamis are caused by undersea volcanoes or earthquakes that push massive amounts of energy through the water. Earthquakes are the most common cause, but landslides can create tsunamis as well.

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  • Q:

    How does a tsunami happen?

    A:

    Tsunamis are formed by violent underwater earthquakes, landslides, volcanic eruptions, and, rarely, meteor impacts. These events cause sudden and drastic displacement of water, forming massive waves in the process.

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  • Q:

    What are the aftereffects of a tsunami?

    A:

    According to the Centers for Disease Control, the aftereffects for humans of a tsunami include lack of clean drinking water, loss of shelter and injury from remaining debris. Economically, areas affected by tsunamis struggle to amass funding to repair damaged structures. Those who survive tsunamis often suffer mentally and emotionally.

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  • Q:

    How can a tsunami be prevented?

    A:

    No known way to prevent a tsunami from occurring exists. Individuals can take steps to be prepared for a tsunami, and warning systems can help get people out of harm's way if an impending tsunami is predicted.

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