Erupted recently - active.
Hasn't erupted recently but could - dormant.
Will never erupt again - extinct.
A volcano that has erupted recently is considered active. In the time before it erupted, if it had not previously erupted in historic times, it is considered dormant.
A volcano that has erupted recently is classed as an active volcano.
Such a volcano is said to be active.
An active volcano
The name of the volcano that erupted in Iceland is Eyjafjallajökull.
A volcano that has erupted within historic time is an Active Volcano.
monstetrrat
lava?
The common term is 'active'. This contrasts to a volcano that has not recently erupted - which is termed 'dormant'.
active
it is true that a active volcano is one that has probably not erupted in a long time but could still erupt again, and a volcano that has not erupted since the last eruption on its due date to erupt it is classed as an extinct volcano or more commonly known as a mountain.
A volcano that has not erupted recently is referred to as a "dormant" volcano. Dormant volcanoes have the potential to erupt again in the future, but they have not shown any activity for a significant period of time. In contrast, an "extinct" volcano is one that is unlikely to erupt again.