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Buried electrical pathways across the US reveal new clues about Earth's interior and power grid risks

phys.org·Amy C. Oliver·28 days ago
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Over the course of nearly 20 years, scientists installed and collected data at more than 1,800 magnetotelluric data stations around the country. The measurements collected have allowed scientists to develop new tools that can detect solar storms before they strike, helping to determine locations most at risk for negative impacts. Credit: Adam Schultz, Oregon State University A solar storm like the one that caused a nine-hour blackout across Quebec in 1989 could have even more dramatic effects if it struck the eastern United States today. Now, scientists have developed new tools to detect these storms before they strike by mapping the hidden electrical structure beneath our feet, revealing how the ground itself could influence the impact on our power grid.…

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