Volcano Trivia Questions

Tap a choice for the answer and its reason, from the island of Vulcano to the ice volcanoes of Triton.

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What is the set of processes and phenomena involved in volcanic activity called?

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Unofficial practice questions, not affiliated with any school, exam board or quiz show. Bank checked October 3, 2026.

How it works

These volcano trivia questions come in four rounds: the word, the plates and the terms; kinds of volcano; lava, ash and eruptions; and famous eruptions, early ideas and volcanoes on other worlds.

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Four rounds, from Vulcano to Triton

The word, the plates and the terms starts on the Italian island that named them all. Kinds of volcano sorts shields from domes and cinder cones. Lava, ash and eruptions asks how small ash is and whom Plinian eruptions are named after. Famous eruptions, early ideas and other worlds ends on the moons of Neptune and Saturn.

Science and history, not a warning service

Nothing here is a forecast or safety advice. Tap a choice to check it; the reason and the article it was read in appear with the answer.

Tips
  • Lava, ash and eruptions has the two chemistry questions, on silica and on the word mafic.

Questions and answers

What are some easy volcano trivia questions?

Which town was destroyed with Pompeii in 79 CE? What are large pieces of tephra called? What is another name for a cryovolcano? The answers are Herculaneum, volcanic bombs and an ice volcano.

Where does the word volcano come from?

From Vulcano, a volcanic island in the Aeolian Islands of Italy. Its name comes from Vulcan, the god of fire in Roman mythology, and the word volcano dates from the early 17th century.

What is a supervolcano?

A volcano that has had at least one eruption producing over 1,000 cubic kilometers of volcanic deposits in a single explosive event. Such eruptions are very rare.

How were the answers checked?

Each was read on October 3, 2026 in the English Wikipedia article Volcano, which every question links. Its running count of recorded eruptions is not asked, because the count changes, and no death toll is asked.

All 48 questions with answers

The word, the plates and the terms 11

  • A volcano that becomes extinct after erupting exactly once is called monogenetic. What does that word mean? Answer: One life. Source: Wikipedia: Volcano
  • In flux melting, what lowers the melting temperature of the mantle above a sinking plate? Answer: Water released from the plate. Source: Wikipedia: Volcano
  • In which century did the word volcano originate? Answer: The early 17th century. Source: Wikipedia: Volcano
  • The lava and tephra deposited around a vent form a cone or mountain known as a volcanic what? Answer: Edifice. Source: Wikipedia: Volcano
  • Scientists call a volcano extinct when it no longer has what? Answer: A magma source. Source: Wikipedia: Volcano
  • Volcanism away from plate boundaries most likely arises from mantle plumes that start about how deep? Answer: 3,000 kilometers. Source: Wikipedia: Volcano
  • Vulcano lies in which group of islands? Answer: The Aeolian Islands. Source: Wikipedia: Volcano
  • What are black smokers, a sign of volcanic activity where plates pull apart, also known as? Answer: Deep sea vents. Source: Wikipedia: Volcano
  • What are the chains of volcanoes that border subduction zones called? Answer: Volcanic arcs. Source: Wikipedia: Volcano
  • What is the set of processes and phenomena involved in volcanic activity called? Answer: Volcanism. Source: Wikipedia: Volcano
  • The word volcano comes from Vulcano, a volcanic island in which country? Answer: Italy. Source: Wikipedia: Volcano

Kinds of volcano 11

  • A stratovolcano has slopes of 30 to 35 degrees. What is the usual slope of a shield volcano? Answer: 5 to 10 degrees. Source: Wikipedia: Volcano
  • A supervolcano has had at least one eruption that produced more than how much volcanic deposit in a single explosive event? Answer: 1,000 cubic kilometers. Source: Wikipedia: Volcano
  • A tuya is a volcano that formed under ice. The term comes from Tuya Butte in which Canadian province? Answer: British Columbia. Source: Wikipedia: Volcano
  • About how tall is the cone-shaped hill that a cinder cone eruption builds? Answer: 30 to 400 meters. Source: Wikipedia: Volcano
  • Caja del Rio, a volcanic field of over 60 cinder cones, is in which US state? Answer: New Mexico. Source: Wikipedia: Volcano
  • Fumaroles that give off sulfurous gases are often called what? Answer: Solfataras. Source: Wikipedia: Volcano
  • How wide are the largest mud volcanoes? Answer: 10 kilometers. Source: Wikipedia: Volcano
  • Lava domes have steep sides built by slow eruptions of what kind of lava? Answer: Highly viscous lava. Source: Wikipedia: Volcano
  • Mysterious humming signals picked up around the world in 2018 were traced to a submarine volcano forming off which island? Answer: Mayotte. Source: Wikipedia: Volcano
  • What is a lake inside a caldera called? Answer: A volcanic lake. Source: Wikipedia: Volcano
  • What kind of volcano is the extinct Olympus Mons? Answer: A shield volcano. Source: Wikipedia: Volcano

Lava, ash and eruptions 12

  • Alaska's Valley of Ten Thousand Smokes was formed in 1912 by the eruption of which volcano? Answer: Novarupta. Source: Wikipedia: Volcano
  • Lava whose magma holds 52 to 63 percent silica is of intermediate composition. What is it called? Answer: Andesitic. Source: Wikipedia: Volcano
  • Mafic lava is named for its higher share of which two elements? Answer: Magnesium and iron. Source: Wikipedia: Volcano
  • Plinian eruptions are named after which Roman writer, who chronicled the eruption of Mount Vesuvius in 79 CE? Answer: Pliny the Younger. Source: Wikipedia: Volcano
  • Pyroclastic flows can reach about which temperature? Answer: 850 °C. Source: Wikipedia: Volcano
  • Solid particles from a volcano count as volcanic ash when they are smaller than what? Answer: 2 millimeters across. Source: Wikipedia: Volcano
  • Volcanic gases are a mixture made mostly of carbon dioxide, a sulfur compound and what else? Answer: Steam. Source: Wikipedia: Volcano
  • Vulcanian eruptions are named after which place? Answer: The island of Vulcano. Source: Wikipedia: Volcano
  • What are large pieces of tephra thrown out by a volcano called? Answer: Volcanic bombs. Source: Wikipedia: Volcano
  • What is the scale that expresses the intensity of explosive volcanism called? Answer: The volcanic explosivity index. Source: Wikipedia: Volcano
  • Which are the largest of all volcanic eruptions? Answer: Ultra-Plinian eruptions. Source: Wikipedia: Volcano
  • Which kind of eruption has a value of 0 on the volcanic explosivity index? Answer: Hawaiian. Source: Wikipedia: Volcano

Famous eruptions, early ideas and other worlds 14

  • About how much of the surface of Venus is basalt, a sign of how much volcanism shaped it? Answer: 90 percent. Source: Wikipedia: Volcano
  • By 1794 Lazzaro Spallanzani had shown that explosive eruptions could be caused by what? Answer: Steam explosions. Source: Wikipedia: Volcano
  • By 65 CE, which Roman writer had proposed combustion as the cause of volcanoes? Answer: Seneca the Younger. Source: Wikipedia: Volcano
  • The eruption of Vesuvius in 79 CE destroyed Pompeii and which other town? Answer: Herculaneum. Source: Wikipedia: Volcano
  • How many Decade Volcanoes have been singled out as worthy of particular study? Answer: 16. Source: Wikipedia: Volcano
  • In 1650 who proposed that the core of the Earth was incandescent? Answer: René Descartes. Source: Wikipedia: Volcano
  • In 1989 the Voyager 2 spacecraft observed ice volcanoes on Triton. Triton is a moon of which planet? Answer: Neptune. Source: Wikipedia: Volcano
  • In 2005 which probe photographed fountains of frozen particles erupting from Enceladus, a moon of Saturn? Answer: Cassini–Huygens. Source: Wikipedia: Volcano
  • In which year did Mount Pinatubo, until then an inconspicuous volcano, erupt? Answer: 1991. Source: Wikipedia: Volcano
  • The Soufrière Hills volcano, long thought extinct, is on which island? Answer: Montserrat. Source: Wikipedia: Volcano
  • What did Roman writers say covered Vesuvius before it erupted in 79 CE? Answer: Gardens and vineyards. Source: Wikipedia: Volcano
  • What is another name for a cryovolcano? Answer: An ice volcano. Source: Wikipedia: Volcano
  • Which volcano erupted unexpectedly in 2008? Answer: Chaitén. Source: Wikipedia: Volcano
  • Why are the Decade Volcanoes so named? Answer: The project began in a United Nations decade for reducing natural disasters. Source: Wikipedia: Volcano
How this list was compiled

Written for this site; nothing was copied from another list. Questions and wrong choices are our own. Each explanation restates, in our own sentences, a fact from the English Wikipedia article named and linked beside the question (https://en.wikipedia.org, text under the Creative Commons Attribution-ShareAlike 4.0 license): Volcano. The text of each article was fetched on October 2, 2026, and on October 3, 2026 the passage that states each fact was read in it before the question was kept. Left out on purpose: death tolls, the running count of eruptions in the Smithsonian database (it changes), anything that reads as safety advice, and facts the site's earth science questions already ask (what a caldera and a pyroclastic flow are, the top of the explosivity index, the other name of a stratovolcano, the year without a summer). Levels are our estimate: easy is fair for any table, medium suits people who know the subject, hard will stump most tables. Each question also carries the date its article was read (checkedOn). Licence: own work