A dormant volcano, Mount Calavera, lies beneath the surface of a quiet Carlsbad neighborhood. Formed 22 million years ago, this plug dome volcano offers a unique geological formation with hexagonal columns resembling those found in famous sites like Devils Tower and Devils Postpile.
When most of us think of volcanoes, we think of molten lava spewing up from the earth and melting everything in its wake. So it may be hard to believe that in a quiet Carlsbad neighborhood lies an ancient and unusual volcano right below the ground.
"Dormant is when we still see magma below the surface, still see a lot of little earthquakes … this here, there is no magma, there are no little earthquakes here. This volcano is extinct. It will never erupt again, not even during a large earthquake," Abbott said.
Volcano Geology Carlsbad California Plug Dome Volcano
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