Travel: Iceland - Land Of Giants "If I wasn't already totally smitten with Iceland, looking at those awesome human-like and reindeer-like electric poles would surely seal the deal! This cool company flawlessly transformed regular and boring electrical pylons into creative parts of the Icelandic landscape." ExPress-O Even if it was just a concept art project.
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.