RFOC (version 1.0-4)

PKAM: P and T-axes data from the Harvard CMT catalog

Description

P and T-axes and Locations of Harvard CMT catalog for the intersection of the Kamchataka and Aleutian arcs

Usage

data(PKAM)

format

The format is: chr "PKAM"

source

http://www.globalcmt.org/CMTsearch.html

Details

The data is selected from the CMT catalog. Parameters are extracted from the standard web distribution. Format of the list of data save in PKAM is: item{Paz}{P-axis azimuth angle} item{Pdip}{P-axis dip angle} item{Taz}{T-axis azimuth angle} item{Tdip}{T-axis dip angle} item{h}{horizontal point to plot on ternary plot } item{v}{vertical point to plot on ternary plot } item{fcols}{colors, not used} item{LATS}{Latitude} item{LONS}{Longitude} item{IFcol}{integer pointer to internal color} item{yr}{year, not used} item{JDHM}{Julian Day, hour, minute, not used} item{JDHMS}{Julian Day, hour, minute, seconds}

References

G. Ekstrom. Rapid earthquake analysis utilizes the internet. Computers in Physics, 8:632-638, 1994.

Examples

data(PKAM)
## maybe str(PKAM) ; plot(PKAM) ...

######  plot the locations:
plot( fmod(PKAM$LONS, 360), PKAM$LATS)
######  

  PlotTernfoc(PKAM$h,PKAM$v,x=0, y=0, siz=1, fcols='black', add=FALSE,
LAB=TRUE)

######  change the colors for the plot

acols = rainbow(7)
fcols = acols[PKAM$IFcol]

######  


 PlotTernfoc(PKAM$h,PKAM$v,x=0, y=0, siz=1, fcols=fcols, add=FALSE,
LAB=TRUE)