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What is Tsunami? Video Lecture - Class 10

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1. What is a tsunami?
Ans. A tsunami is a series of ocean waves that are triggered by large earthquakes, volcanic eruptions, or underwater landslides. These waves can travel across the ocean at high speeds and cause significant destruction when they reach coastal areas.
2. How are tsunamis formed?
Ans. Tsunamis are most commonly formed by underwater earthquakes, where the Earth's tectonic plates shift and release a massive amount of energy. This energy is then transferred to the water, creating powerful waves that can travel great distances.
3. What are the warning signs of a tsunami?
Ans. Some warning signs of an approaching tsunami include a rapid and unexpected recession of ocean water, a strong earthquake felt near the coast, or a loud roaring sound similar to a freight train. However, it is important to note that not all tsunamis come with warning signs, making an early warning system crucial for coastal communities.
4. How can we protect ourselves from tsunamis?
Ans. To protect ourselves from tsunamis, it is essential to have an early warning system in place that can detect earthquakes and issue timely alerts. Additionally, coastal communities should have evacuation plans in place and educate their residents about tsunami preparedness, including seeking higher ground and staying away from the coast during a tsunami warning.
5. Are all coastal areas equally at risk from tsunamis?
Ans. No, not all coastal areas are equally at risk from tsunamis. Certain areas, such as those located near tectonic plate boundaries or active volcanic zones, are more prone to experiencing tsunamis. However, it is important to note that tsunamis can travel across long distances and affect coastal areas far from the source of the earthquake or volcanic eruption. Therefore, it is crucial for all coastal communities to be prepared and have mitigation measures in place.
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