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What we can learn from the world's biggest waves

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IMAGE: Some of the devastation in Fukushima as a result of the 2011 Japan tsunami, which killed over ten thousand people.
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Credit: Shutterstock
Alaska is renowned for its postcard pretty mountains, vast spaces and massive earthquakes.
But not many people know the highest tsunami wave ever accurately measured - at 524-metres - occurred in Alaska.
It happened 63 years ago during a tsunami - an unusual wave that is usually generated by either a large undersea earthquake; volcanic eruptions; landslides that fall into the sea or that occur underwater; and asteroids.
Evidence of the destruction caused by the Lituya Bay, Alaska tsunami can still be seen from space. ....

Indian Ocean , United States , Lituya Glacier , Prince William Sound , United Kingdom , Lituya Bay , South Africa , Aleutian Islands , Sri Lanka , New Zealand General , New Zealand , James Goff , Walter Dudley , Cook Strait , Vivian Swanson , University Of Hawaii , Oxford University Press , Sustainability Research Centre , Honorary Professor Of Tsunami Research , Oxford University , Honorary Professor , Tsunami Research , Professor James Goff , Greatest Waves , Emeritus Prof , Marine Geology ,

Tsunami: Lessons for the future

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Tsunami: Lessons for the future
Daily News (via HT Media Ltd.)
Sixteen years ago on this day, massive tidal waves battered the coast of Sri Lanka and 13 other countries in the Indian Ocean and Africa, killing over 240,000 people and rendering 1.7 million homeless. For a population that did not even know the word ‘tsunami’ before 2004, we are now very much aware of the dangers posed by these massive waves.
The tsunami arose from a displacement between the India and Burma plates, 70 Km off the west coast of northern Sumatra. The earthquake’s initial magnitude was estimated at 8.0 on the Richter scale. Almost 40 hours after the quake, they learned that its true force stayed hidden as it travelled along 1000 Km of a fault line. The final reading, published in May 2005, indicated that the Indian Ocean quake had one of the highest magnitudes ever recorded at 9.1. It even managed to shake the Earth a bit off its regular orbit. ....

Indian Ocean , Sri Lanka , Sri Lankan , Us Geological , Indian Ocean Tsunami Warning System , Ocean Assessment , Big Wave , இந்தியன் கடல் , ஸ்ரீ லங்கா , ஸ்ரீ லங்கன் , எங்களுக்கு புவியியல் , இந்தியன் கடல் சுனாமி எச்சரிக்கை அமைப்பு , கடல் மதிப்பீடு , பெரியது அலை ,