Seismic Moment (Mo)
Seismic Moment (Mo) : A measure of the earthquake size containing information on the rigidity of the elastic medium in the source region, average dislocation, and area of faulting. It determines the amplitude of the long-period level of the spectrum of ground motion. It is calculated as: Mo = Shear Modulus of Faulted Rock (Dynes/cm2) x Length of Fault Rupture Zone (cm) x Width of Fault (cm) x Displacement of Fault (cm)
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