The Ritcher scale measures the intensity, or magnitude, of an earthquake. The formula for the magnitude R of an earthquake is R = log (a/t) + B, where a is the amplitude in micrometers of the vertical motion of the ground at the recording station, T is the number of seconds between successive seismic waves, and B is an adjustment factor that takes into account the weakening of the seismic wave as the distance increases from the epicenter of the earthquake. Find an earthquake’s magnitude on the Ritcher scale if a recording station measure an amplitude of 300 micrometers and 2.5 seconds between waves. Assume that B is 4.2. Approximate the solution to the nearest tenth.
The Ritcher scale measures the intensity, or magnitude, of an earthquake. The formula for the magnitude R of an earthquake is R = log (a/t) + B, where a is the amplitude in micrometers of the vertical motion of the ground at the recording station, T is the number of seconds between successive seismic waves, and B is an adjustment factor that takes into account the weakening of the seismic wave as the distance increases from the epicenter of the earthquake. Find an earthquake’s magnitude on the Ritcher scale if a recording station measure an amplitude of 300 micrometers and 2.5 seconds between waves. Assume that B is 4.2. Approximate the solution to the nearest tenth.
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