Uturuncu Volcano Shows Signs of Activity in Bolivia

Recent studies of Bolivia's dormant Uturuncu volcano reveal that its ongoing unrest—marked by ground deformation, seismic activity, and gas emissions—is primarily caused by the movement of hot fluids and gases within a complex magmatic-hydrothermal system, rather than by imminent magma ascent. Although Uturuncu has not erupted in over 250,000 years, scientists have detected a distinctive rising and sinking pattern in the landscape, as well as over 1,700 local earthquakes. High-resolution imaging and multidisciplinary research show that heated fluids and gases migrate upward from the massive Altiplano-Puna Magma Body, accumulating beneath the crater and triggering the volcano's so-called 'zombie' activity. Despite these signs of internal stirring, researchers emphasize that there is no immediate risk of eruption, but the findings offer valuable methods for monitoring other dormant volcanoes. The study’s advanced techniques—combining seismic analysis, satellite data, and computer modeling—provide unprecedented insight into the deep plumbing system of this geologically significant region. Scientists note that Uturuncu’s ongoing activity underscores the need for continued monitoring to better understand long-term volcanic hazards.