Scientists Explain Why This California Volcano Is Under Constant Surveillance Before It's Too Late
20:44
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Scientists Explain Why This California Volcano Is Under Constant Surveillance Before It's Too Late
Scientists believed California's greatest volcanic threat was easy to find. Then they uncovered something hidden beneath one of the state's most popular ski resorts. For decades, the USGS has monitored this massive volcanic system twenty-four hours a day, tracking earthquakes, ground movement, and gases rising from deep underground. Why are ...
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