SOLUTION: ok a few questions? Have to figure out magnitudes on a ritcher scale for earthquakes with the intensities of the foloowing please help any way you can! first is 10 7.85. I subnot

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: ok a few questions? Have to figure out magnitudes on a ritcher scale for earthquakes with the intensities of the foloowing please help any way you can! first is 10 7.85. I subnot      Log On


   

Question 439494: ok a few questions?
Have to figure out magnitudes on a ritcher scale for earthquakes with the intensities of the foloowing please help any way you can!
first is 10 7.85. I subnot
second is 10 8.25. I subnot
third is 10 9.6 . I subnot
fourth is 10 6.9 . I subnot?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Have to figure out magnitudes on a ritcher scale for earthquakes with the intensities of the foloowing please help any way you can!
first is 10 7.85. I subnot
magnitude = 10^7.85 = 70794578.44 Io
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second is 10 8.25. I subnot
mag = 10^8.25 = 177827941.0 Io
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third is 10 9.6 . I subnot
mag = 10^9.6 = 3981071706 Io
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fourth is 10 6.9 Io
mag = 10^6.9 = 7943282.347 Io
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Cheers,
Stan H.