It depends on what type of volcano they are;
Active - very likely to erupt e.g Mt Etna
Dormant(sleeping) - a volcano which has not erupted for many years. For example, Mt Pinatubo erupted in 1991 after 500years of dormany
Extinct - a volcano in which has not erupted for many thousand or millions of years
It is difficult to tell when they will erupt but when a volcano has been active for a very long time it is extinct or dead which means it won't erupt again. Previous answer = every minunite
a volcano can erupt anytime of the day in many countries. theres a volcano errupting right now
There is no set "frequency" - some volcanos have been dormant for centuries and then erupt, some are 'slightly active' every few decades.
A volcano can occur at any time because there is no season for it and they are either dormant or they are over a major hot spot which causes them to erupt.
There is no set pattern as to how often they erupt but on a yearly basis there are about 50 to 60 volcanic eruptions.
15 times
50
Never.
A volcano can erupt twice or even an infinite number of times. Most volcanoes erupt many times over their lives.
they arupt 2 a year
Volcanic activity is classified by how often a volcano erupts. A volcano may be active, intermittent, dormant, or extinct.Active volcanoes erupt constantly.Intermittent volcanoes erupt fairly regularly.Dormant volcanoes are inactive, but not long enough to determine whether they will erupt again or not.Extinct volcanoes have been inactive since the beginning of recorded history.
It depends on the volcano. Some volcanoes can erupt very often, while others will only erupt once every hundred years.
Yes, they often erupt again.
There are no volcanoes in the Grand Canyon.
Never.
every 2 years
Yes. Composite volcanoes often produce violent eruptions.
A volcano can erupt twice or even an infinite number of times. Most volcanoes erupt many times over their lives.
they arupt 2 a year
Volcanic activity is classified by how often a volcano erupts. A volcano may be active, intermittent, dormant, or extinct.Active volcanoes erupt constantly.Intermittent volcanoes erupt fairly regularly.Dormant volcanoes are inactive, but not long enough to determine whether they will erupt again or not.Extinct volcanoes have been inactive since the beginning of recorded history.
As many as it wants. Some volcanoes erupt often, some infrequently
It depends on the volcano. Some volcanoes can erupt very often, while others will only erupt once every hundred years.
No. Volcanoes erupt.
About 60 volcanoes erupt each year.