TY  - JOUR
ID  - epos1370
UR  - http://dx.doi.org/10.1785/0120060181
IS  - 5
A1  - Amorese, Daniel
Y1  - 2007///
N2  - A method based on nonparametric statistics (hereafter called ?median-
based analysis of the segment slope,? MBASS) is applied for the detection of change
points in frequency magnitude distributions (FMDs). The determination of the lowest
magnitude for which the Gutenberg?Richter relation still applies is a key point for
the computation of reliable b-values. The change-point detection method presented
here is used to determine automatically this threshold magnitude (called m 0 in this
study) for large subsets extracted from four seismic catalogs. Results are successfully
compared to those of a previous benchmark study from other authors. Moreover, the
MBASS procedure is able to detect a magnitude artifact in the FMDs of a regional
catalog. The results of the MBASS procedure con?rm that a break in slope in a
cumulative frequency distribution may be misleading when FMDs are analyzed by
eye.
PB  - Seismological Society of America
JF  - Bulletin of the Seismological Society of America
VL  - 97
SN  - 0037-1106
TI  - Applying a Change-Point Detection Method on Frequency-Magnitude Distributions
SP  - 1742
AV  - none
EP  - 1749
ER  -