Such a volcano is said to be active.
The common term is 'active'. This contrasts to a volcano that has not recently erupted - which is termed 'dormant'.
A volcano that has erupted recently is classed as an active volcano.
active
The name of the volcano that erupted in Iceland is Eyjafjallajökull.
Vent
The second eruption is called a reawakening or re-eruption.Most volcanoes erupt multiple times over the course of their lifespan; the period during which a volcano doesn't erupt is called its dormant period or dormancy.
It is called a active volcano. Inactive volcanoes have not erupted for more than a century.
The volcano is called Eyjafjallajökull.
"WhatIS IT CALLED when a Volcano is not active" do you mean? It is known as Extinct or Dormant
A volcano that has erupted at least once during the past 10,000 years is called an active volcano. Active volcanos can be further classified as erupting or dormant. An erupting volcano is an active volcano that is currently having an eruption. A dormant volcano is an active volcano that is not erupting, but that is due to erupt again.
Eyjafjallajokull
volcanoes that don't erupt in a while is called dormant.volcanoes that don't erupt anymore are called extinct.volcanoes that erupt regularly are called active.