\begin{table}%t4
   %\centering
\par
      \caption{The properties of UV explosive events due to Innes et~al. (\cite{Innes97}).\label{tab4}}
		 \begin{tabular}{ll}
            \hline\hline
            \noalign{\smallskip}
	Property & Value \\
            \noalign{\smallskip}
            \hline
            \noalign{\smallskip}
	Global frequency & 500~s$^{-1}$ \\
	Velocity & 150 km~s$^{-1}$ \\
	Area & $2.3 \times 10^{6}$~km$^{2}$ \\
	Mean Lifetime & 60 s \\
            \noalign{\smallskip}
            \hline
         \end{tabular}
   \end{table}