An accumulation of seismic moment data gathered over the previous decade justifies a new attempt at a comprehensive statistical analysis of these data: herein, more rigourous statistical techniques are introduced, their properties investigated, and these methods are employed for analysis of large modern data sets. Several theoretical distributions of… (More)
Figure 4. Earthquake cumulative number versus log seismic moment for the global shallow earthquakes Mi1017.1 (mi5.4) in the 1987/1/1– 1998/12/31 Harvard catalogue in ocean transform faults. The curves show the numbers of events with moment greater than or equal to M for group of faults classified according to their velocity. We also show the approximation of curves by the TGR distributions. The values of parameters are: velocity 0–36 mm yrx1, b=0.600, Mc=45r10 18 N m (mc= 7.1); velocity 36–67 mm yr x1, b= 0.650, Mc= 11r10 18 N m (mc= 6.7); velocity >67 mm yr x1, b= 0.533, Mc= 3.2r10 18 N m (mc=6.3).