Most of Italys known volcanoes are in the central part of the Italian mainland.
Many states don't have a single volcano so it's hard to tell which state has the least amount of volcanoes.
There are no active volcanoes in Utah. The state's geology is mostly characterized by sedimentary rocks, and there is no evidence of recent volcanic activity.
On Hawaii mostly sheild volcanoes are known to be there like mount Kilauea.
iceland is a belt of volcanoes/hotspots along the mid ocean ridge, it isn't just mostly volcanoes, it is a volcano itself
they mostly erupt in Hawaii
Volcanoes mostly erupt in the sea to make islands or big massesof land,
Volcanoes usually form where tectonic plates meet.
here do volcanoes mostly uruped
Active volcanoes are mostly found on islands such as Japan ,andaman and nicobar etc.
Iceland
The Pacific West is known for its volcanoes.