This phenomenon (also responsible for reports of mass reindeer deaths due to lightning storms) leads to more injuries and deaths than the above three combined. The near-instantaneous rate of discharge causes a potential (difference) over distance, which may amount to several thousand volts per linear foot. Because the ground has high impedance, the current "chooses" a better conductor, often a person's legs, passing through the body. Ground current or "step potential" – Earth surface charges race towards the flash channel during discharge.Blast injuries – being thrown and suffering blunt-force trauma from the shock wave (if very close) and possible hearing damage from the thunder.
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