A new study suggests
that evidence of volcanic fields which could lead to new volcano eruptions
capable of wiping out infrastructure and disrupting air travel have been found.
Dead volcanoes are present throughout southwestern United States.

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In the Quarternary
geological period – the last 2.58 million years – round about 1800 volcanoes
have been found in the region surrounding Arizona, parts of California, Colorado,
Nevada, New Mexico and Utah.

If that number seems big then it will come as a
surprise to know that if the Pinacate volcanic field in the Mexican state of
Sonora is included then the bar of 1,800 is raised to over 2,200. Some of these
fields emerged around 1,000 years ago.

The volcanoes are known as monogenetic.
The term means ‘one life’.

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A volcanologist and the study’s co-author
Greg Valentine told Newsweek, “A
monogenetic volcano will erupt once, and that eruption may last several days to
several decades, but after that, the volcano is basically dead,”

He pointed towards the fact that the
regions of Hawaii, the Pacific Northwest and Alaska are given more attention
due to boasting huge stratovolcanoes such as Mount Rainier and Mount St. Helens,
both of whom can erupt a number of times.

Vast research has been conducted about the
Monogenetic volcanoes to try and understand more about the Earth that exists
below the surface. Although, in recent times the focus has shifted to
understandings the hazards that these volcanoes pose.

Geologist and co-author Michael Ort told Newsweek,
“Two of the most recent
eruptions in the Southwest occurred near Flagstaff about 1,000 years ago — one
just outside of town and the other on the north rim of the Grand Canyon,”

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There is an eight percent chance of a new
eruption happening within the area over the next 100 years. This number does
not consider the fact a single eruption can lead to multiple vents spewing
magma.