This type of volcano is described as dormant. Another level is inactive. This describes a volcano for which there is no record of eruption (unlike dormant), and the volcano's shape and structure is beginning to change due to weathering and erosion.
Dormant, or, for a very long time, over thousands of years, extinct.
They can stay active for hundreds of thousands to a few million years.
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 erupted within historic time is an Active Volcano.
An active volcano is one that is erupting or is likely to erupt.A dormant volcano is one that has not erupted for a long time (but is still possibly active).An extinct volcano is one that is not likely to erupt again.
A volcano is called a volcano whether it is erupting or not.It is called an active volcano if it is erupting or has erupted recently.It is a dormant volcano if it hasn't erupted in a long time.Extinct volcanoes are not expected to ever erupt again.
Dormant volcano
Some 12,000 years. It is a still-active volcano.
Simply an "active" Volcano. If it has NOT erupted for a long time it can be a "dormant" or "extinct" Volcano.
Active Volcano erupts from time to time while a inactive volcano hasn't erupted in a long while and may not erupt in the future again. But your never sure if a volcano is truly inactive or not!
An extinct volcano has not had an eruption for at least 10,000 years and is not expected to erupt again in a comparable time scale of the future.This is in contract to a dormant volcano, which is an active volcano that is not erupting, but supposed to erupt again. An active volcano is a volcano that has had at least one eruption during the past 10,000 years. An active volcano might be erupting or dormant.
They can stay active for hundreds of thousands to a few million years.
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.
quiescent
The Arenal Volcano is the only volcano in Costa Rica constantly active since it woke up after 400 years with the big 1968 eruption producing huge ash columns, explosions & glowing red lava almost every day. It is considered one of the ten most active volcanoes in the world. This country is about beaches, rainforest and the spectacular Arenal. Source: arenal.net
none, all Australian volcanoes are long extinct
A volcano that has erupted within historic time is an Active Volcano.
An active volcano is one that is erupting or is likely to erupt.A dormant volcano is one that has not erupted for a long time (but is still possibly active).An extinct volcano is one that is not likely to erupt again.