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

In RFOC: Graphics for Spherical Distributions and Earthquake Focal Mechanisms

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"

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:

itemPazP-axis azimuth angle itemPdipP-axis dip angle itemTazT-axis azimuth angle itemTdipT-axis dip angle itemhhorizontal point to plot on ternary plot itemvvertical point to plot on ternary plot itemfcolscolors, not used itemLATSLatitude itemLONSLongitude itemIFcolinteger pointer to internal color itemyryear, not used itemJDHMJulian Day, hour, minute, not used itemJDHMSJulian Day, hour, minute, seconds

Source

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

References

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

Examples

data(PKAM)
## 

######  plot the locations:
plot( RPMG::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)

RFOC documentation built on Sept. 8, 2023, 6:12 p.m.