Measuring the Earthquake Magnitude Below is Richter's nomogram with three lines representing the data you provided. Use this diagram and estimate the Richter magnitude of this earthquake. (Your three lines might not cross at a point on the magnitude scale.) Enter your estimate in the box below the nomogram. 500 8.0 -200 GOO 7.0 100 500 50 400 300 5.0 Legend -5 Pusan 200 40 - Tokyo 72 - Akita 100 2.0 FI GO Ens 2.0 0.2 30 1.0 20 Distance (kilometers) Magnitude Ampatude (millimeters) My estimate for the Richter magnitude of this earthquake

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