Question

do you think it is likely that a major volcanic eruption will occur on the mainland of the United States

Answer 1

Because the whole west coast is on the "ring of fire"  witch has high volcanic activety and junk like that

Answer 2

Answer: check explanation

Explanation:

WHAT ARE VOLCANOES?.

Simply put, volcanoes do occur when magma within the Earth's upper mantle moves to the weak spots or ruptures or openings in the earth crust. It is these openings or ruptures of the earth crust that will then erupt hot gases, volcanic Ash and lava.

US MAINLANDS: the mainlands comprise of 48 contiguous states and Washington, D.C.

It has been reported that there are about 169 potentially active volcanoes in the United States of America by the United States Geological Survey.

Since the question asked for my opinion, for me, I can not say, Volcanoes are very tricky, it might erupt with no warning and it might erupt with warning for days. All, I know is that if it is going to erupt, the numbers of the people that are going to loose their lives will be minimal, since there are now 'big' gadgets that can be used to determine whether volcanoes are going to erupt any time soon.