The Physics of the Plasma Universe by Anthony Peratt describes magma as a plasma, a medium containing moving charges. So we should expect volcanoes not only to exhibit electrical behavior but to have that behavior connected with the larger plasma environment, that is, to be elements in a larger electrical circuit.
What can you say about this? Standing speechless, you watch as the light and ambient pressure changes. You begin to hear the sound of this fury. Which way is the cell moving. Do I have shelter? The World slows down, as you stand there spellbound, full of wonder and awe. McC