If we play this number game, water at temperature below \(80^oC\) (density \(971.8\,kgm^{-3}\)) but above \(60^oC\) (density \(983.2\,kgm^{-3}\)) has a density of \(975.96\,kgm^{-3}\) which gives,
\(v_{boom\,ice}=3.4354*\cfrac{975.96}{2*1+1*8}=335.28\,ms^{-1}\)
which would be lightning speed, quoted at \(750\,miles\,per\,hour\). Was magnetite a red herring? Earthquakes is due to lightning strikes on condensed underground steam?
How much energy can be released when lightning strikes condensed water at the above temperature range (\(\approx75^oC\) from www.engineeringtoolbox.com)?
