R = log (A) where A - the measure of the amplitude of the earthquake wave...

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R = log (A) where A - the measure of the amplitude of the earthquake wave Ao the amplitude of the smallest detectable wave (or standard wave). An earthquake is measured with a wave amplitude 570 times as great as Ao. What is the magnitude of this earthquake using the Richter scale, to the nearest tenth? The earthquake registered on the Richter scale. R = log (A) where A - the measure of the amplitude of the earthquake wave Ao the amplitude of the smallest detectable wave (or standard wave). An earthquake is measured with a wave amplitude 570 times as great as Ao. What is the magnitude of this earthquake using the Richter scale, to the nearest tenth? The earthquake registered on the Richter scale.