Q:

What does "dormant volcano" mean?

A:

Quick Answer

According to Volcano World, a website sponsored by the Department of Geosciences at Oregon State University, a dormant volcano is a volcano that has not erupted in 10,000 years but is expected to eventually erupt again. A volcano is classified as dormant, active or extinct.

Continue Reading

Full Answer

Active volcanoes have erupted in the past 10,000 years and may even be erupting in present day. Extinct volcanoes are not expected to ever erupt again. According to Universe Today, a volcano becomes extinct when the tectonic plate it sits upon shifts away from a volcanic hotspot beneath the Earth's crust and no longer has access to a magma chamber stored below.

Learn more about Volcanoes

Related Questions

  • Q:

    How many extinct volcanoes are there in the world?

    A:

    It is hard to put an exact figure on the number of extinct volcanoes in the world; according to Oregon State University, the expectation that a volcano will never erupt again is no guarantee that this is actually the case. When it comes to predicting volcanic behavior, there is a lot of potential room for human error.

    Full Answer >
    Filed Under:
  • Q:

    How many people died when the Stromboli volcano erupted?

    A:

    The Stromboli volcano is unique among the world's volcanoes in that it has been erupting almost continually for nearly 2,000 years. In spite of this, as of 2014, there have been fewer than 10 recorded deaths associated with the volcano.

    Full Answer >
    Filed Under:
  • Q:

    How does a volcanic neck form?

    A:

    A volcanic neck forms when lava inside a caldera cools after magma stops feeding the mountain, and then the outside of the extinct volcano erodes after millions of years. The cooled lava remains intact because it is harder than the surrounding rock that eroded. Perhaps the most famous volcanic neck in the United States is Devil's Tower in Wyoming.

    Full Answer >
    Filed Under:
  • Q:

    What is an active volcano?

    A:

    An active volcano is one that has had at least one eruption in the past 10,000 years. An active volcano can be dormant or erupting.

    Full Answer >
    Filed Under:

Explore