example of large scale movement and small scale movement?
Answers
Explanation:
The moment magnitude scale (MMS; denoted explicitly with Mw or Mw, and generally implied with use of a single M for magnitude[1]) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment (a measure of the work done by the earthquake[2]). It was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude scale (ML ) defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales.
Moment magnitude (Mw ) is considered the authoritative magnitude scale for ranking earthquakes by size.[3] It is more directly related to the energy of an earthquake than other scales, and does not saturate—that is, it does not underestimate magnitudes as other scales do in certain conditions.[4] It has become the standard scale used by seismological authorities like the U.S. Geological Survey[5] for reporting large earthquakes (typically M > 4), replacing the local magnitude (ML ) and surface wave magnitude (Ms ) scales. Subtypes of the moment magnitude scale (Mww , etc.) reflect different ways of estimating the seismic moment