With reference to Tsunami, consider the following statements: 1. The speed of wave in the ocean depends upon the depth of water. 2. Wavelength of the tsunami reduces when it approaches the shore. Which of the statements given above is/ are correct?  

With reference to Tsunami, consider the following statements: 1. The speed of wave in the ocean depends upon the depth of water. 2. Wavelength of the tsunami reduces when it approaches the shore. Which of the statements given above is/ are correct?   Correct Answer Both 1 and 2 

The correct answer is Both 1 and 2

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A tsunami also called seismic sea waves. It is one of the most powerful and destructive natural forces. ​

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• The ocean's wave velocity depends on the depth of the sea. It is deeper in the ocean than in shallow water.
• As a consequence, the effect of the tsunami is less on the ocean and more near the shore, causing large-scale damage.
• When a tsunami hits shallow water, it reduces the wave-length and the time remains constant, increasing the height of the wave. This height may often be up to 15 m or more, causing large-scale damage along the coasts.

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• 70% of the recorded tsunami origins worldwide are in the Pacific Ocean, 9% in the Caribbean Sea, 15% in the Mediterranean and Atlantic Oceans, and 6% in the Indian Ocean.
• Tsunamis are commonly observed along the Pacific Ring of Fire, particularly along the coast of Alaska, the Philippines, Japan and other South Asian and Southeast Asian islands.