|Rating the Size of Earthquakes|
This report describes how the work of K. Wadati, Charles F. Richter, Harry O. Wood, and Beno Gutenberg resulted in a way of rating earthquakes in southern California according to an instrumental analysis of the amount of energy they released in the form of seismic waves. This work resulted in the first use of the term "magnitude" for describing the amount of energy released by an earthquake, and in the development of the now-famous Richter Scale for quantifying earthquake magnitudes. Topics include the original definition of Richter magnitude and a brief synopsis of how Richter used earthquake data from southern California to graphically represent trace amplitude and develop a table of values that could be used to calculate magnitudes.
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Copyright 2002 Southern California Earthquake Center at the University of Southern California. All rights reserved.
DLESE Catalog ID: DLESE-000-000-006-735
This resource is part of 'SCEC Education Module: Investigating Earthquakes through Regional Seismicity'
Resource contact / Creator / Publisher:
Publisher: Southern California Earthquake Center (SCEC)