Logs and Richter ```Name: Tony Status: Student Age: 19 Location: N/A Country: N/A Date: N/A ``` Question: How does Ricther Scale relate to logarithm? Replies: The Richter Scale is a common logarithmic scale, which means that each unit on the Richter scale represents a tenfold increase in energy released during the earthquake. So, an earthquake rating a 7 on the Richter scale releases 10 times more energy than one rating a 6, and 100 times more than one rating a 5. Richard E. Barrans Jr., Ph.D. Assistant Director PG Research Foundation, Darien, Illinois The Richter Scale uses the amplitude of ground motion as a way of ranking the earthquakes in terms of their magnitude, M. The magnitude of an earthquake may be related to its frequency of ocurrence per year via the following relation: log N = k. bM where N is the frequency, M is the magnitude and k and b are constants. Log N is the value of the logarithm function for N. Tha answers your question? And thanks for asking NEWTON! Mabel (Dr. Mabel Rodrigues) Click here to return to the Environmental and Earth Science Archives

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