Abstract
In their recent article, Nolet et al. (1998) presented an analysis which led them to conclude that the epicentral distance and focal depth correction factors for mb which were previously published by Veith and Clawson (1972) are not accurate for events with focal depths greater than 100 km. In this brief commentary, we present some independent evidence which has led us to conclude that the Veith/Clawson (V/C) corrections are in fact quite accurate, at least for seismic events having focal depths of less than about 400 km.
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