Theoretical pv-magnitude calibrating curves for deep foci |
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| Authors: | Jaromír Janský Jan Zedník Vít Kárník Reviewer J Vaněk |
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| Institution: | (1) Institute of Geophysics, Charles University, Prague;(2) Geophysical Institute, Czechosl. Acad. Sci., Prague |
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| Abstract: | Summary The theoretical medium period PV-magnitude calibrating curves were computed for the Earth model PREM and a wide range of focal depths. The calculated set of curves reflects the distribution of model parameters, the influence of source radiation was not taken into account. The widely used Gutenberg's empirical calibrating curves were compared with the theoretical ones. Pronounced deviations in the shape and differences in the level of isolines were found. Thus, if model PREM is considered to be representative of the Earth's structure, the empirical calibrating curves  (D, h) for magnitude determination currently used in seismological practice, have to be verified.
     a  uma  m  mu u a u  u u ¶rt; n¶rt;u a um ¶rt; - n ¶rt;nu¶rt; annaam ¶rt; ¶rt;u  u RE  u ¶rt;uanau aa.  uu ma am an¶rt;u naam ¶rt;u ma uu u umua.  u nu  nuuu au u  ma u a mmuuu uu.  u a¶rt; mu auu n  u u .  au a, u num ¶rt; RE n¶rt;maum ¶rt; mu u, m ¶rt;u num nuuu au u (D, h) ¶rt; n¶rt;u aum¶rt;, m am unm u namu.
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