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Moment Magnitude Scale
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H4JQUO37OE8
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Geliefert zwischen Mi., 26.11.2025 und Do., 27.11.2025
Details
The moment magnitude scale (abbreviated as MMS; denoted as Mw, where w indicates work accomplished) is used by seismologists to measure the size of earthquakes in terms of the energy released.The magnitude is based on the moment of the earthquake, which is equal to the rigidity of the Earth multiplied by the average amount of slip on the fault and the size of the area that slipped.The scale was developed in the 1970s to succeed the 1930s-era Richter magnitude scale, ML. Even though the formulae are different, the new scale retains the familiar continuum of magnitude values defined by the older one. The MMS is now the scale used to estimate magnitudes for all modern large earthquakes by the United States Geological Survey.Like the Richter scale, the MMS is logarithmic; on the scale, an earthquake one number higher is approximately thirty-one times (the square root of 1,000) more powerful (for example, 7.0 is about thirty-one times the power of 6.0).
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130621971
- Genre Geowissenschaften
- Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
- Sprache Englisch
- Anzahl Seiten 96
- Herausgeber Alphascript Publishing
- Größe H5mm x B220mm x T150mm
- Jahr 2010
- EAN 9786130621971
- Format Fachbuch
- ISBN 978-613-0-62197-1
- Titel Moment Magnitude Scale
- Untertitel Moment magnitude scale, Seismology, Earthquake, Torque, Fault (geology), Richter magnitude scale, United States Geological Survey, Logarithmic scale, Earthquake engineering, Geophysics
- Gewicht 144g
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