The Phuket earthquake occurred on 26 December 2004 at 00:58:53.45 GMT. The Phuket data frame contains this event and its aftershock sequence.
Usage
data(Phuket)
Arguments
source
The data were extracted from the PDE (Preliminary Determination of Epicentres) catalogue provided by the US Geological Survey (ftp://hazards.cr.usgs.gov/pde/).
Details
The Phuket data frame contains those events (1248) from the PDE Catalogue, within the spatial region $89^\circ$E--$105^\circ$E and $5^\circ$S--$16^\circ$N, with magnitude 5 or greater, occurring between midnight on 1 January 2004 and midnight on 1 January 2009 (1827 days later). The body wave magnitudes are determined by the amplitude of the initial primary wave, and these magnitudes tend to saturate for higher values. Consequently, the tabulated magnitude is taken as the maximum of the body wave magnitude ($m_b$) and surface wave magnitude ($M_s$).