Birth of a Tsunami | PBS LearningMedia
Birth of a Tsunami | PBS LearningMedia
Jan 1, 2009
pbslearningmedia.org
A tsunami begins when tectonic plates shift, usually at a subduction zone where one plate is forced under another. This movement can cause a sudden underwater earthquake, displacing a large volume of water. The energy from the displacement generates waves that travel across the ocean at high speeds. As the waves approach shallow coastal areas, they slow down, increase in height, and surge inland, causing widespread flooding and destruction. #reels #explore #nature #learn | Explaining Everything
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The tsunami that struck Thailand on December 26, 2004, was caused by a massive earthquake with a magnitude of 9.1 to 9.3 on the Richter scale. The epicenter of the earthquake was located off the west coast of northern Sumatra, Indonesia. The earthquake was caused by the Indian and Australian tectonic plates moving against each other, resulting in a large-scale displacement of water. This displacement created a series of massive waves that traveled at high speeds across the Indian Ocean, eventual
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In 2004, a large earthquake in the Indian Ocean triggered the largest tsunami in recorded history. One of the countries hit by the tsunami was Sri Lanka, where the wave caused one of the worst train disasters in human history when it hit the Queen of the Sea passenger line, which was carrying 1,500 passengers along Sri Lanka's west coast. Watch Destruction Decoded on Wednesdays at 8pm on National Geographic UK. | National Geographic UK
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How Tsunami Occurs A tsunami typically occurs when there is a sudden movement along faults in the Earth’s lithospheric plates, often due to an undersea earthquake. These plates, which make up the Earth’s outer shell, shift and collide at their boundaries. When stress builds up and is released along a subduction zone—where one lithospheric plate is forced beneath another—this displacement causes a large volume of water to be abruptly pushed upward, generating tsunami waves. These waves travel acr
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