Yes You Can Plug A Volcano With Concrete, If You Want To Make Things Far, Far Worse People have been asking why you can't just plug a volcano with concrete. There are many reasons.

Volcanic plugs are formed when molten magma solidifies in the pipe or neck of an active volcano. Over time, the agents of erosion wear the softer surrounding sediments of the volcanic cone away.

Tucked away in far northeastern California, Lassen offers sweeping grandeur and hydrothermal marvels in an uncrowded, contemplative atmosphere. The park is home to more than 40 volcanoes, bubbling ...

An extinct volcano is lying hidden in Carlsbad's Calavera Nature Preserve in north San Diego County. ... What’s unusual is that hikers are able to see the exposed volcanic plug with its columns.

The role of rain in this case has raised questions around whether climate change could bring more frequent “lava-dome” eruptions, which tend to be stronger and more destructive than other types.

Now, about that volcanic plug. What locals call Mount Calavera is what’s left of an ancient volcano that erupted sometime between 13 million and 18 million years ago.

Yes, You Can Technically Plug A Volcano With Concrete. But You Really, Really Shouldn't. People keep suggesting this, and it is a terrible idea. James Felton. James Felton. Senior Staff Writer.