Steepness of the leading edge of current pulse is 5000-30000 amperes per microsecond, subsequent pulses more than 200 000A/μs! Surely it would be possible to reach interesting conclusions by comparing the plans of water supply and sewerage, electrification, gas and signal lines and networks with the shape and course of the patterns found over them (for example, the centers of circles).
Sa panahon ng discharges maganap average na alon 30,000 amperes, ngunit mas magagamit 500 000A. Magagamit na napaka makabuluhang umakit anumang mga sangkap kakayahan ng pagbabalani kasalukuyan sa site, para sa isang mahabang oras - lalo na sa kaso ng field na nasa lahat ng pook Fe, Fe2O3 FeO, at sa napaka maraming mga kaso nagpapakita doon water pipe underground.