TY  - JOUR
ID  - epos1374
UR  - http://dx.doi.org/10.1007/s10950-006-9012-4
IS  - 2
A1  - Scordilis, Emmanuel
N2  - The existence of several magnitude scales used by seismological centers all over the world and the compilation of
earthquake catalogs by many authors have rendered globally valid relations connecting magnitude scales a necessity.
This would allow the creation of a homogeneous global earthquake catalog, a useful tool for earthquake research.
Of special interest is the de?nition of global relations converting different magnitude scales to the most reliable
and useful scale of magnitude, the moment magnitude, M W . In order to accomplish this, a very large sample of
data from international seismological sources (ISC, NEIC, HRVD, etc.) has been collected and processed. The
magnitude scales tested against M W are the surface wave magnitude, M S , the body wave magnitude, m b , and the
local magnitude, M L . The moment magnitudes adopted have been taken from the CMT solutions of HRVD and
USGS. The data set used in this study contains 20,407 earthquakes, which occurred all over the world during the
time period 1.1.1976?31.5.2003, for which moment magnitudes are available. It is shown that well-de?ned relations
hold between M W and m b and M S and that these relations can be reliably used for compiling homogeneous, with
respect to magnitude, earthquake catalogs.
VL  - 10
TI  - Empirical Global Relations Converting M S and m b to Moment Magnitude
AV  - none
EP  - 236
Y1  - 2006/12/28/
PB  - Springer Verlag
JF  - Journal of Seismology
KW  - magnitude scales
KW  -  moment magnitude
KW  -  global empirical relations
KW  -  homogeneous catalogs
SN  - 1383-4649
SP  - 225
ER  -