Assertion: magnitude scale | /r/HasProperty | seismic waves
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Source sentences:
text: In the decades that followed the creation of the original Richter scale, they developed the body-wave magnitude scale (m b , which calculates the magnitude of primary, or P, and secondary, or S, seismic waves traveling within Earth) and the surface-wave magnitude scale (M S , which calculates the magnitude of Love and Rayleigh waves traveling along Earth’s surface).