Magnetotelluric imaging of the volcano has found a number of high-conductivity anomalies below Uturuncu, including a wide, deep conductor that extends to the volcanic arc to the west and several shallower ones which ascend from the deep conductor which appears to coincide with the Altiplano-Puna magmatic body. The shallow conductors appear to relate to local volcanoes such as the Laguna Colorada vent but also Uturuncu; the latter conductor lies between depth, is less than wide and may consists of molten rock with saline aqueous fluids.