GRTo (version 1.3)

GRTo-package: Gutenberg-Richter Tools

Description

Gutenberg-Richter Tools for the analyzis of the properties of distributions of earthquakes in magnitude. Some functions in this package are helpful for the comparison of Gutenberg-Richter b-values. The Schuster's function can be used to highlight blast contamination in earthquake catalogs.

Details

Package:

GRTo

Type:

Package

Version:

1.3

Date:

2015-09-16

License:

GPL

LazyLoad:

yes

References

D. Amorese, "Applying a change-point detection method on frequency-magnitude distributions", Bull. seism. Soc. Am. (2007) 97, doi:10.1785\/0120060181

D. Amorese, J.-R. Grasso and P. A. Rydelek, "On varying b-values with depth: results from computer-intensive tests for Southern California", Geophys. J. Int. (2010) 180, 347-360

Rydelek, P. A. and Hass, L. (1994) On Estimating the Amount of Blasts in Seismic Catalogs with Schuster's Method Bulletin of the Seismological Society of America, Vol. 84, No. 4, pp. 1256-1259.

Siegel, A.F., "Robust regression using repeated medians", Biometrika (1982) 69, 242-244.

Zurn, W. and Rydelek, P. A. (1996) Revisiting the phasor-walkout method for detailed investigation of harmonic signals in time series Surveys in Geophysics, Vol. 15, No. 4, pp. 409-431.

Examples

# Comparison of the b-value for the IDYLLdeep data set.
    BBootComp(finame1=system.file("extdata","IDYLLdeep.data.txt",package="GRTo"),
    finame2=NULL, colid1=15, colid2=NULL,nrep=200,alter=NULL,findtm1=TRUE,
    findtm2=NULL,plot=TRUE, title="IDYLLWILD", tm1=NULL,tm2=NULL)