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Anonymous users2024-02-151958 year. The Tsunami in the Gulf of Litua in Alaska, USA, can be called the world's "devil's tsunami", it once set off a huge wave of 524 meters, with a speed of up to 150 kilometers per hour, which is no less powerful than a nuclear bomb in the water, which shows how terrible the power of the tsunami is.
The area in the ** zone is also a frequent tsunami zone.
Scientific studies have shown that the global tsunami outbreak area is almost the same as the **zone, so the United States is also in the occurrence of 8 3 magnitude **, only after the unprecedented tsunami crisis, the current global record of destructive tsunamis is about 260 times, so calculated, an average of six to seven years will occur, of which the Pacific Rim of the tsunami accounts for about 80, and the Japanese sea accounted for about 60 of the Pacific Rim tsunami, that is, Japan is the world's ** The countries that suffered the most from the tsunami.
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Anonymous users2024-02-14The Litua Bay tsunami struck on 9 July 1958, when a massive earthquake triggered a landslide that plunged more than 30 million cubic metres of icebergs into Alaska's Litua Bay. As a result, the waters of the Gulf of Litua have been severely displacedA tsunami of up to 524 meters was caused. The tsunami was the highest tsunami on record, which also upended the oceanographer's perception of the tsunami.
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Anonymous users2024-02-13Tsunamis can reach up to 85 meters in height, and the world's highest tsunami is the Ryukyu Islands tsunami in 1771, which is a destructive wave caused by the seabed**, volcanic eruptions, submarine landslides or meteorological changes, and the speed of the tsunami is as high as 700-800 kilometers per hour. When a tsunami occurs, the ** wave travels far away in an ever-expanding circle on the surface of the sea. At a high speed of 600-1,000 kilometers per hour, it gallops 10,000-20,000 kilometers on the unobstructed ocean, setting off 10-40 meters high waves crashing on the shore.
The physical basis of tsunami warning is that the propagation speed of the wave is faster than that of a tsunami.
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Anonymous users2024-02-12During the dinosaur period, the super tsunami caused by the asteroid hitting the Earth. It should be considered the highest.
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Anonymous users2024-02-111. The tsunami in Nankaido, Japan
In the ranking of the world's largest tsunamis, the tsunami in Nankaido, Japan, occurred in 1707 and was a tsunami caused by a magnitude 8**, and it is understood that the waves were 25 meters high at that time, which swept through the entire Kyushu region of Higen and Sakimoto, and also affected many surrounding cities, causing at least 30,000 deaths.
2. The great tsunami in Chile
The Chilean tsunami occurred in 1960, the entire tsunami wave height of 21 meters, lasted for about three days, according to statistics, the tsunami caused more than 25,000 deaths, at least 2 million people were homeless, and the direct huge economic losses.
3. The Qianlong tsunami
The Qianlong tsunami occurred in 1771 in the Ryukyus, Japan, and was also caused by a tsunami of magnitude 8**, with waves at least 80 meters high, which eventually caused nearly 10,000 lives and serious economic losses.
Tsunami causes:
A tsunami is a catastrophic wave that is usually caused by a seabed** with an epicenter within 50 kilometers of the ocean floor and above the Richter scale. Tsunamis can also be caused by landslides or volcanic eruptions underwater or along the coast.
After a shock, the ** wave travels a long distance in an ever-expanding circle on the surface of the sea, just like the wave produced by a pebble falling into a shallow pool. The tsunami wavelength is greater than the maximum depth of the ocean, and the orbital motion is not much hindered near the seafloor of the hail front, and the wave can propagate regardless of the depth of the ocean.
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Anonymous users2024-02-10In August 1883, the volcanic eruption on the Indonesian volcanic island of Krakatoa was the worst in human history. The eruption can be heard as far away as Australia. The tsunami waves caused by volcanic eruptions were as high as 130 feet (40 meters).
Tsunamis are natural phenomena caused by underwater **, volcanic eruptions, underwater subsidence and landslides, and are accompanied by loud noises. It is a wave with great destructive power, the most powerful force of nature on the planet.
Tsunamis travel at a speed of about 500 to 1,000 kilometers per hour in the ocean, and the distance between two adjacent waves can be as far as 500 to 650 kilometers
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