abstract

The relation the spectral corner frequency and the source dimensions, r(P, S) = c(P, S)β/ƒ0 is tested for two deep earthquakes under the assumption that aftershocks approximately outline the rupture area. It was found that c = 0.37 as proposed by Brune (1970) leads to radii estimates within ±20 per cent of the radii outlined by the aftershocks.

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