To find: The Richter Scale: The Richter scale is one way of converting seismographic readings into numbers that provide an easy reference for measuring the magnitude of an earthquake. All earthquakes are compared to a zero-level earthquake whose seismographic reading measures millimeter at a distance of 100 kilometers from the epicenter. An earthquake whose seismographic reading measures millimeters has magnitude , given by
Where is the reading of a zero-level earthquake the same distance from its epicenter., determine the magnitude for the following earthquake,
Magnitude of an Earthquake San Francisco in 1906: seismographic reading of millimeters 100 kilometers from the center.
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College Algebra Enhanced with Graphing Utilities (7th Edition) (Sullivan Enhanced with Graphing Utilities Series)
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