Source Information

• Richter scale magnitude formula source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • Akkar, S. and J. J. Bommer. "Empirical Equations for the Prediction of PGA, PGV and Spectral Accelerations in Europe, the Mediterranean Region, and the Middle East." Seismological Research Letters 80 no. 2 (2010): doi:10.1785/gssrl.81.2.195. »
  • Atkinson, G. M and D. M. Boore. "Modifications to Existing Ground-Motion Prediction Equations in Light of New Data." Bulletin of the Seismological Society of America 101 no. 3 (2011): doi: 10.1785/0120100270. »
  • Boore, D. M. and G. M. Atkinson. "Ground-Motion Prediction Equations for the Average Horizontal Component of PGA, PGV, and 5%-Damped PSA at Spectral Periods between 0.01 s and 10.0 s." Earthquake Spectra 24 no. 1 (2008): doi:10.1193/1.2830434. »
  • Zhao, J. X., et al. "Attenuation Relations of Strong Ground Motion in Japan Using Site Classification Based on Predominant Period." Bulletin of the Seismological Society of America 96 no. 3 (2006): doi:10.1785/0120050122. »

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