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Earthquake Measurement through GPS |
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Friday, 07 January 2011 |
Earthquakes are measured in a variety of ways. Its size has been traditionally determined by various seismologic methods which examine the amount of shaking directly relating to the energy released in an earthquake.
Global Positioning System or GPS measures the size of an earthquake mainly by examining the final amount that a station has been displaced in an event. This is done by analyzing the total distance that a station has moved in an earthquake by comparing its position before and after the event. It appears that there is a relationship between the amount of displacement caused by an earthquake and its magnitude. The specific relationship between slip and magnitude is what scientists use to measure the relative size of an earthquake by way of GPS. |
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