If the assumptions used in calculating energy are changed, then this seriously affects the final result, even though the same body of data might be used.
Charles Francis Richter
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This is very similar to astronomy where different magnitudes are assigned to the brightness of an astronomical object, depending on the range of wavelengths being measured.
- Charles Francis Richter -
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If one introduces the concept of energy of an earthquake then that is a theoretically derived quantity.
- Charles Francis Richter