Scientists Explain Why This California Volcano Is Under Constant Surveillance Before It's Too Late

Scientists Explain Why This California Volcano Is Under Constant Surveillance Before It's Too Late

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Discover Tube
Jul 10, 2026  #unitedstates

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 they watching so closely? And what have they discovered that most people have never heard about? Today on DiscoverTube, we're uncovering the hidden truth beneath California's Long Valley Caldera—and why scientists say this volcano is far from dead.

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