cale. The variables are just a subset of the variables available at the source</p>
    

        
    <h2 class="hasAnchor" id="format"><a class="anchor" href="#format"></a>Format</h2>

    <p>A data frame with 19777 observations on the following 22 variables.</p><dl class='dl-horizontal'>
<dt>time</dt><dd><p>a factor with time of the earthquake</p></dd>
<dt><code>latitude</code></dt><dd><p>a numeric vector giving the decimal degrees latitude. Negative values for southern latitudes</p></dd>
<dt><code>longit