Q:

What is the oldest volcano?

A:

Quick Answer

With its first recorded eruption in approximately 1500 B.C., Mt. Etna in Italy is believed to be the oldest active volcano in the world. Mt. Etna has erupted over 190 times and has the most extensive eruption record in history.

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Full Answer

Mt. Etna, one of the largest continental volcanoes, last erupted in 1993, its largest eruption as of May 2014.

A volcano in the Pacific Ocean dubbed Tamu Massif, discovered in 2013, is considered the largest volcano in the world. At 120,000 square miles, Tamu Massif is approximately the size of New Mexico. The volcano is estimated to be 145 million years old.

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Related Questions

  • Q:

    How many people died when Krakatoa erupted?

    A:

    When the volcano Krakatoa erupted in 1883, at least 36,417 died from the eruption itself and the tsunamis it created. On Aug. 27, 1883, two-thirds of the volcano collapsed during a chain of violent eruptions that almost destroyed the entirety of the island and surrounding archipelagos.

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  • Q:

    How do you know when a volcano erupts?

    A:

    According to the UCSB Geology Department, a volcanic eruption is defined as a volcanic event resulting in the emission of gases, lava, ash or other material from a volcano. These can manifest as a single eruptive pulse, an eruptive phase or an eruptive episode.

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  • 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.

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  • Q:

    What effect did Mount St. Helens have?

    A:

    The eruption of Mount St. Helens at 8:32 on May 18, 1980 was a major geological event that continues to have many effects on the 150 square miles surrounding the volcano. This eruption is classified as the worst volcanic disaster in United States history. In this explosion, the mountain lost its conical tip and 1,300 feet in elevation. Fifty-seven people and hundreds of animals lost their lives.

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