Volcanoes can lie dormant for thousands of years.
When a volcano goes to sleep, it becomes dormant, meaning there is no volcanic activity or eruption occurring. However, this does not mean the volcano is extinct, as it can wake up and become active again in the future. During this dormant period, magma may still be present beneath the surface, but there is no immediate threat of eruption.
Usually a volcano that has not erupted in many years poses a greater potential threat. Volcanoes are erupt infrequently are more likely to produce large eruptions.
The canary islands are all sitting on the top of an underwater volcano that has been dormant for hundreds of years. I also know that most of the individual islands have there own volcano's and on tenerife it is due to erupt soon as it does every 100 years. So the islands are on the top of a volcano with a volcano on top of most of them.
Volcanoes take many years to form, but it also depends on the type of volcano. A stratovulcano for example exists of multiple layers. This takes many years. Because of an erruption a volcano often collapses or shrinks, so then it takes many years again. A new volcano can also be formed in the crater of an old volcano. Check the link under the related links section for detailed information about volcanoes.
The oldest volcano on Earth is thought to be the Etna volcano in Sicily, Italy, which began forming about 350,000 years ago. It has been active for about 500,000 years.
A volcano which has not erupted for many years can be described as dormant. The word dormant is derived from the French, dormire, meaning to sleep.
dormant
formed by a volcano many, many years ago.
well it depends if you sleep 12 hours every day for 24 years you would have gotten about 12 years of sleep.
100 years
It changes over many years with weathering and erosion
she fell into a deep sleep
When a volcano is active it will erupt. These volcanoes might take many years to erupt but will still erupt.
3 years
When a volcano goes to sleep, it becomes dormant, meaning there is no volcanic activity or eruption occurring. However, this does not mean the volcano is extinct, as it can wake up and become active again in the future. During this dormant period, magma may still be present beneath the surface, but there is no immediate threat of eruption.
Usually a volcano that has not erupted in many years poses a greater potential threat. Volcanoes are erupt infrequently are more likely to produce large eruptions.
yes bunbury senior high school is built on a volcano but it is not active and erupted last many many many years ago