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Such storms can last between one and three days. He’s one of many voices in the worldwide geophysical community warning that geoelectric “perfect storms” will happen-it’s not a question of if, but when. Geological Survey (USGS) in Golden, Colo., and coauthor of the new USGS solar geoelectric hazard study.

Jeffrey Love is a research geophysicist at the U.S. Those include stockpiling electrical transformers in national strategic reserves. The good news is that a few preventative measures could drastically reduce the damage done when a solar storm hits Earth. A new study about solar-induced power outages in the U.S. electric grid finds that a few key regions-a portion of the Midwest and Eastern Seaboard-appear to be more vulnerable than others.