Active volcanoes are those that have erupted recently or regularly erupt, and inactive volcanoes are those that have not erupted for a long time. The exact time distinction between active and inactive volcanoes differs between experts.Know More
Currently active volcanoes are volcanoes that are erupting presently, and there are almost always some erupting throughout the world. Active volcanoes are expected to erupt in the near future on a relatively regular schedule. Some people consider volcanoes active if they have erupted in the past 100 years, but others do not classify a volcano as inactive or dormant until hundreds or thousands of years have passed.
Dormant and inactive are often used interchangeably, but they have subtle differences. Dormant volcanoes are expected, and have the ability, to erupt in the future. They may have a long cycle between eruptions during which they are dormant. Inactive volcanoes are usually not expected to erupt in the future and have not erupted in recent history.
Dormant and inactive volcanoes can become extinct after many years. This happens when a volcano moves away from its magma source or its source becomes empty. The shifting of tectonic plates can move volcanoes away from the source, which results in extinct volcanoes that have no chance of erupting.Learn more about Volcanoes
The world has thousands of volcanoes, many of them active, and any attempt at a list requires classification. Volcanoes can be grouped according to their type: stratovolcanoes and shield volcanoes, as is done by Oregon State University.Full Answer >
An inactive volcano is one that could erupt but has not erupted for more than 10,000 years. Inactive volcanoes are also called dormant or sleeping volcanoes.Full Answer >
Volcanic vents allow the Earth to release built up gases from the heat and pressure emanating from its core. Magma rises towards the surface, and as the pressure builds the magma seeks outlets through which to flow. The higher the pressure build-up, the greater the volcanic explosion.Full Answer >
No two volcanoes are exactly the same, as they all have differences in dimensions of their mountains and craters, as well as their relative frequency and type of eruption. Volcanoes come in cinder cone, shield and stratovolcano varieties.Full Answer >