Ring of Fire Trivia
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57 free Ring of Fire trivia questions with answers — geography quiz, new questions added Oct 2026.
The Ring of Fire is the 40,000-kilometre belt of volcanoes and earthquake zones that surrounds most of the Pacific Ocean, home to around two-thirds of the world's volcanoes and about 90 percent of its earthquakes. This quiz covers the geology and the drama: the subducting plates that built it, the trenches and gaps, the Andesite Line, the four largest Holocene eruptions, the world's highest and most active volcanoes, and the famous disasters from Krakatoa and Mount Pelée to St. Helens, Pinatubo, the Armero lahar, the great Chilean quake of 1960 and the Tōhoku tsunami of 2011. Easy questions ask which ocean it circles and which country holds the record for the biggest earthquake; harder ones cover the plate under the Cascades, why Hawaii is not included and how deep the Challenger Deep goes. It suits geography and earth-science students, teachers, travellers to Japan, New Zealand or the Andes, and quiz nights that want a science round with real explosions in it. Every answer has been checked against the Wikipedia articles on the Ring of Fire and the individual volcanoes, earthquakes and regions it contains, and each question shows its source once you have answered.
30 of 57 questions with answers and explanations. Play the quiz
Q 01Despite its name, the Ring of Fire is usually described as having which shape?
A horseshoe
A horseshoe: the Ring runs up the Americas, across to Asia and down to New Zealand, but its two ends never meet, because its chain of trenches and volcanoes breaks off in the far southern Pacific.
Q 02The Ring of Fire's 40,000 km length is close to which distance?
Around the Earth
Around the Earth at the equator is 40,075 km. The near-round figure is no accident: the metre was first defined so that the distance from pole to equator would be 10,000 km.
Q 03Roughly what share of the world's earthquakes strike along the Ring of Fire?
About 90 percent
About 90 percent, including most of the very largest: nearly all the way round, ocean floor is being forced under the neighbouring plates, and the two sides stick for years, then slip.
Q 04Which Pacific island nation's undersea volcano produced the biggest atmospheric blast ever recorded by instruments, in January 2022?
Tonga
Tonga's Hunga Tonga-Hunga Ha'apai volcano sent shock waves right around the globe, and its booms were heard on the far side of the Pacific, more than 9,000 km away.
Q 05Which of these is another name for the Ring of Fire?
The Circum-Pacific belt
The Circum-Pacific belt is its plainer name. The fiery one suits the word volcano itself, which comes from Vulcan, the Roman god of fire.
Q 06Which volcanic islands are left out of the Ring of Fire because a hotspot, rather than colliding plates, feeds their eruptions?
Hawaii
Hawaii sits in the middle of the Pacific plate, thousands of kilometres from the nearest plate edge, so its volcanoes are fed by a plume of hot rock rising from deep below.
Q 07Which oceanic plate is sliding beneath South America's Pacific coast, pushing up the Andes?
Nazca
Nazca's dense ocean floor sinks beneath the lighter continent, and the squeeze crumples South America's edge upward into the Andes.
Q 08Mount St. Helens and its neighbours are fed by the sinking of which small remnant of the Farallon plate?
Juan de Fuca
Juan de Fuca is a leftover scrap of the once-vast Farallon plate, most of which has already been swallowed beneath North America; this piece is still sinking under the Pacific Northwest.
Q 09Along the East Pacific Rise, the long undersea ridge west of South America, the plates are doing what?
Spreading apart
Spreading apart: along ridges such as the East Pacific Rise new sea floor is made instead of swallowed, so there is none of the plate-under-plate melting that builds the Ring's explosive volcanoes.
Q 10Which continent is excluded from the Ring of Fire because it sits in the middle of its tectonic plate?
Australia
Australia rides in the centre of its plate, with no plate boundary on the continent, so its mainland has no erupting volcanoes, while New Zealand and Papua New Guinea, on the plate's edges, have dozens between them.
Q 11What kind of volcano, like Mount St. Helens and Mount Fuji, is typical of the Ring of Fire?
Stratovolcanoes
Stratovolcanoes are built up in layers, falls of ash alternating with lava flows; their sticky, gas-rich magma piles into steep cones and erupts far more violently than the runny lava of broad shield volcanoes.
Q 12Which ice-capped volcano towering over Tacoma and Seattle is rated among the most dangerous in the world?
Mount Rainier
Mount Rainier is loaded with glacier ice that an eruption could turn into mudflows able to run down the river valleys to Puget Sound; one about 500 years ago buried the valley floor where the town of Orting now stands.
Q 13Which volcano burst out of a farmer's cornfield in 1943 and kept growing for nine years?
Q 21Which Japanese port city was devastated by the Great Hanshin earthquake of January 1995?
Kobe
Kobe took most of the deaths, and a stretch of its elevated expressway, a structure supposed to withstand earthquakes, toppled over.
Q 22Popocatépetl is the second-highest peak in Mexico after which mountain?
Pico de Orizaba
Pico de Orizaba is also the highest volcano in North America. Popocatépetl is the restless one of the pair: it woke in December 1994 after decades of quiet.
Q 23What did an earthquake set off at Mount St. Helens on 18 May 1980, uncorking the eruption?
A giant landslide
A giant landslide, the largest ever recorded on land: the bulging north face slid away, and the pressure it released let the volcano burst out sideways in a blast that killed about 57 people.
Parícutin
Parícutin began as a crack in a cornfield, built a cone hundreds of metres high and buried the nearby town of San Juan under lava before it fell silent in 1952.
Q 14Oregon's Crater Lake fills the hole left when which volcano collapsed about 7,700 years ago?
Mount Mazama
Mount Mazama threw out so much molten rock that its summit fell in on itself, and the pit later filled with water to become the deepest lake in the country.
Q 15Which country was hit in 1960 by the largest earthquake ever recorded?
Chile
Chile's Valdivia earthquake reached about magnitude 9.5, and its tsunami crossed the whole Pacific: many hours later it was still deadly on the coast of Japan.
Q 16The tsunami from the largest earthquake ever recorded, in 1960, devastated which city on Hawaii's Big Island?
Hilo
Hilo's sirens had sounded hours earlier, but hundreds of people were still on low ground, and others had come back after a small first wave, when the highest one struck and killed 61.
Q 17Which Andean peak is the highest volcano on Earth?
Ojos del Salado
Ojos del Salado has no confirmed eruption in recorded history, though its summit still vents gas, and in 2023 a Porsche was driven above 6,700 metres on its slopes, a world record for a car.
Q 18Villarrica, in the southern Andes, is one of the few volcanoes in the world with what in its crater?
An active lava lake
An active lava lake glows in Villarrica's crater, though it comes and goes; the deadlier threat is on its flanks, where eruptions melt snow and ice into mudflows, as in 1964 and 1971.
Q 19Cotopaxi, among the world's highest active volcanoes, rises south of which capital city?
Quito
Quito sits just to its north. In 1877 an eruption melted Cotopaxi's summit snow and ice into mudflows that ran about 100 km down the valleys, some as far as the Pacific.
Q 20In 1985 mudflows from the volcano Nevado del Ruiz buried the town of Armero, killing over 20,000, in which country?
Colombia
Colombia's Nevado del Ruiz had only a small eruption, but it melted part of the summit's ice, and the mudflows that followed were the deadliest in recorded history.
Q 24Mount St. Helens blew its top in May 1980 in which US state?
Washington
Washington: the eruption rated 5 out of 8 for explosivity, killed 57 people and left the mountain about 400 metres shorter than it had been that morning.
Q 25What is the magnitude-9.2 earthquake that shook Anchorage in 1964, the second-largest ever recorded, commonly called?
The Good Friday earthquake
The Good Friday earthquake struck at 5:36 pm on 27 March 1964, the Friday before Easter, and the ground went on shaking for about four and a half minutes.
Q 26Novarupta, site of the 20th century's largest volcanic eruption in 1912, lies in which US state?
Alaska
Alaska's Novarupta was so remote that for about 40 years the blast was blamed on nearby Mount Katmai, whose summit caved in as the magma drained from beneath it.
Q 27Mount Pinatubo's 1991 eruption buried Clark Air Base in ash, so which country's air force abandoned it that year?
United States
The United States had already moved its 15,000 people off the base: forecasts by Philippine and American scientists got the area evacuated before the blast, saving at least 5,000 lives.
Q 28Which peninsula in the Russian Far East holds one of the densest clusters of active volcanoes on Earth?
Kamchatka
Kamchatka lies right where the Pacific plate dives beneath Asia, and the melting that sets off feeds chain upon chain of volcanoes, many of them still erupting.
Q 29Which New Zealand island volcano erupted in December 2019 while 47 tourists and guides were on it?
White Island
White Island, known in Māori as Whakaari, is New Zealand's most active cone volcano, a private reserve that had drawn sightseers for decades; the sudden blast killed 22 of the people ashore.
Q 30Japan, home to 111 active volcanoes, is dotted with thousands of natural hot-spring baths known by what name?
Onsen
Onsen are not only for people: in Nagano's Jigokudani valley, wild snow monkeys come down from the cliffs each winter to sit in the steaming water.