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Today earthquake magnitude measurement is based on the Moment Magnitude Scale. The result is called the moment magnitude The moment magnitude provides an estimate of earthquake. The Richter scale is open-ended but most earthquakes fall between magnitudes 20 and 90..
Today earthquake magnitude measurement is based on the Moment Magnitude Scale MMS. Magnitude scales like the moment magnitude measure the size of the earthquake at its source. Wave Amplitude Fault Size Amount of Slip There are a number of ways to measure the magnitude of an. Magnitude scales vary based on what aspect of the seismic waves are measured and how they are measured..
The Richter scale 1 ˈrɪktər also called the Richter magnitude scale Richters magnitude scale and the GutenbergRichter scale 2 is a. Richter scale ML quantitative measure of an earthquake s magnitude size devised in 1935 by American seismologists Charles F. The first scale for measuring earthquake magnitudes developed in 1935 by Charles F Richter and popularly known as the Richter scale is actually the. The Richter scale is a logarithmic scale that measures the magnitude of an earthquake originally developed by Charles F. The idea of a logarithmic earthquake magnitude scale was first developed by Charles Richter in the 1930s for measuring the size of earthquakes..
Although numerousintensity scales have been developed over the last several hundred years to evaluate the effects of earthquakes the one currently used in the United States is the Modified Mercalli. The Modified Mercalli intensity scale MM MMI or MCS measures the effects of an earthquake at a given location This is in contrast with the seismic magnitude usually reported for an earthquake. The Mercalli Scale is based on observable earthquake damage From a scientific standpoint the magnitude scale is based on seismic records while the Mercalli is based on observable data. Felt by a few people especially on upper floors Noticeable indoors especially on upper floors but may not be recognized as an earthquake Felt by many indoors few outdoors. The Mercalli Scale The Mercalli scale has 12 divisions using Roman numerals from I to XII Not felt except by a very few under especially favorable circumstances..
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