\Header{attenu}{The Joyner-Boore Attenuation Data}
\keyword{datasets}{attenu}
\begin{Usage}
\begin{verbatim}data(attenu)\end{verbatim}
\end{Usage}
\begin{Format}
A dataframe with 182 observations on 5 variables.
\Tabular{rlll}{
[,1] & event    & numeric  & Event Number \\{}
[,2] & mag      & numeric  & Moment Magnitude \\{}
[,3] & station  & factor   & Station Number \\{}
[,4] & dist     & numeric  & Station-hypocenter distance (km)\\{}
[,5] & accel    & numeric  & Peak acceleration (g)\\{}
}\end{Format}
\begin{Description}
This data gives peak accelerations measured at various observation
stations for 23 earthquakes in California. The data have been used
by various workers to estimate the attenuating affect of distance
on ground acceleration.\end{Description}
\begin{Source}
Joyner, W.B., D.M. Boore and R.D. Porcella (1981).  Peak horizontal
acceleration and velocity from strong-motion records including
records from the 1979 Imperial Valley, California earthquake.  USGS
Open File report 81-365. Menlo Park, Ca.\end{Source}
\begin{References}
Boore, D.M. and W.B. Joyner (1982).  The empirical prediction of
ground motion, Bull. Seism. Soc. Am. 72, S269-S268.

Bolt B.A. and N.A. Abrahamson (1982).  New attenuation relations
for peak and expected accelerations of strong ground motion, Bull.
Seism. Soc. Am. 72, 2307-2321.

Bolt B.A. and N.A. Abrahamson (1983).  Reply to W.B. Joyner and
D.M. Boore's "Comments on `new attenuation relations for peak and
expected accelerations for peak and expected accelerations of strong
ground motion'", Bull. Seism. Soc. Am. 73 , 1481-1483.

Brillinger, D.R. and H.K. Preisler (1984).  An exploratory analysis
of the Joyner-Boore attenuation data, Bull. Seism. Soc. Am. 74,
1441-1449.

Brillinger, D.R. and H.K. Preisler (1984).  Further analysis of
the Joyner-Boore attenuation data, Manuscript.\end{References}

