@subsubheading Description

The data set give the locations of 1000 seismic events of MB > 4.0. The events
occurred in a cube near Fiji since 1964.

@subsubheading Format

@table @code
@item lat
Latitude of event.
@item long
Longitude of event.
@item depth
Depth (km).
@item mag
Richter magnitude.
@item stations
Number of stations reporting.
@end table

@subsubheading Details

There are two clear planes of seismic activity. One is a major plate junction;
the other is the Tonga trench off New Zealand. These data constitute a subsample
from a larger dataset of containing 5000 observations.

@subsubheading Source

This is one of the Harvard PRIM-H project data sets. They in turn obtained it
from Dr. John Woodhouse, Dept. of Geophysics, Harvard University.

@subsubheading References

G. E. P. Box and G. M. Jenkins (1976). @cite{Time Series Analysis, Forecasting and
Control}. San Francisco: Holden-Day. p. 537.

P. J. Brockwell and R. A. Davis (1991). @cite{Time Series: Theory and Methods}.
Second edition. New York: Springer-Verlag. p. 414.

@subsubheading Examples

@example
@INCLUDE_DATASET_EXAMPLE_SCRIPT{BJsales_1.m}
@end example
