What Is A Megaquake
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Japan scientists have warned of the possibility of a "megaquake" after eight people were injured Thursday in a magnitude 7.1 earthquake
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It was the first advisory issued under a new system drawn up following a major quake in 2011, according to news agency AFP
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Let us understand what is the megaquake that scientists have warned about
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It is an earthquake of exceptional destructive power, especially one with a magnitude of 8 or more, which may generate a tsunami
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Also called megathrust earthquake, it can be described as rare and of the highest magnitude
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The magnitude of an earthquake is related to the length of the fault on which it occurs
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According to United States Geological Survey (USGS), the longer the fault, the larger can be the earthquake
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A fault is a break in the rocks that make up the Earth's crust, along which rocks on either side have moved past each other
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The largest earthquake or megaquake ever recorded was of 9.5 magnitude on May 22, 1960 in Chile, per USGS
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