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Seismic zone IV
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The earthquake zone VII on our home planet Earth includes a actually quite small area, nmlich Alaska and the island group of the Aleutian Islands, which is the border area between lembu Russia and the USA in the west to the east in the Bering Sea.
In these regions, there are many sparsely populated areas and earthquakes lembu do not require as many deaths lembu as in earthquake in China or India, but in terms of geological Vorgnge the earthquake zone VII is very interesting and it showed especially during an earthquake at the scene 28 . Mar 1964 had occurred.
The earthquake took place at Anchorage. The city is located in the Gulf of Alaska and the magnitude was 8.0 and demanded more than 1,000 lives. That was bad, but for geologists was the earthquake in so far interesting, when all the earth masses have moved. Studies have found that a large area of about 300,000 square kilometers have been moved and, it is believed, with a jerk. This means that an area of ungefhr 400 km width and 800 km length was treated with a time from A to B.
A railroad has been removed from their tracks and transported 50 meters. Whole Erdwlle have been created and elsewhere, there was suddenly a sink that definitely was not there before. The event is an example for a subduction, so the foisting of a tectonic plate under another and aroused the curiosity of the earthquake researchers with regard to further such Vorgnge.
From plate tectonics one knows that the Pacific plate pushes every year by about 6 inches to the north under the North American Plate and the earthquake zone VII marks the place where this happens, and earthquakes as that of Anchorage will therefore arise even more often.
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