GK
ECOLOGY BIODIVERSITY CONSERVATION ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Destructive
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Major
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Great
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Damaging
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Detailed explanation-1: -In theory, the Richter scale has no upper limit, but, in practice, no earthquake has ever been registered on the scale above magnitude 8.6. (That was the Richter magnitude for the Chile earthquake of 1960. The moment magnitude for this event was measured at 9.5.).
Detailed explanation-2: -A temblor with a magnitude of 8.0 or higher is considered a “great earthquake.” On the average, one earthquake of such size, such as the 1964 Good Friday Earthquake in Alaska and the 2011 Japanese Earthquake and Tsunami, occurs somewhere in the world each year.
Detailed explanation-3: -The scale used to measure the magnitude of an earthquake is the Richter scale. On Richter scale and earthquake of 2 to 4 is not damaging, 4-8 is a moderate to severe earthquake and greater than 8-9 is very severe.