quakes {base} | R Documentation

## Locations of Earthquakes off Fiji

### 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.

### Usage

    data(quakes)

### Format

A data frame with 1000 observations on 5 variables.

[,1] | lat | numeric | Latitude of event
[,2] | long | numeric | Longitude
[,3] | depth | numeric | Depth (km)
[,4] | mag | numeric | Richter Magnitude
[,5] | stations | numeric | Number of stations reporting

### Details

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

### 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.

### Examples

    data(quakes)
    pairs(quakes, main = "Fiji Earthquakes, N = 1000", cex.main=1.2, pch=".")

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