The volcano's exploding! Who would have guessed?
And to top it all off,
The volcano erupts!
If ever a volcano appears on screen in a work of fiction, its eruption is inevitable. The existence of a volcano is, in itself, a Chekhov's Gun
. There's no sense in having it around unless
, because otherwise the story is robbed of a clear dramatic conflict. (Unless you're just planning to have an awesome climax fight over the roiling magma
dormant volcanoes are filled with.)
This is especially to be expected if a volcano is explicitly not supposed to erupt
, thereby surprising everyone and driving them into a panic. The likelihood goes up further still whenever someone asks whether or not the volcano will explode, and is weakly comforted by the other person saying "Oh, it's not going to erupt. It's inactive. Do you have any idea how unlikely an eruption would be?"
Obviously Truth in Television
. Volcanoes (even dormant ones - there's a reason they're called dormant and not dead
) are very dangerous things and can go off without warning, which is why most governments monitor active volcanoes within their territory.
Mount Fuji, a national symbol of Japan, is a notable exception, but then again, nobody ever makes a big deal about Mt. Fuji being a volcano, so it's not like it's ever a plot point. Let's just hope they never address the existence of a certain lake in Indonesia
or a certain national park in Wyoming
Not to be confused with Appease the Volcano God
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- Used gloriously in the climax of JoJo's Bizarre Adventure Part 2. The final battle takes place near a volcano. Cars has achieved godhood and is completely impervious to anything Joseph throws at him. So what does Joseph do? Infuse said volcano with Hamon energy so it erupts and sends Cars flying into space, where he aimlessly drifts around as a frozen block of ice and eventually goes insane from loneliness.
- Mazinger Z: The Photon Atomic Research Institute is located on the base of Mount Fuji. And unlike other shows, this series remembers it IS a volcano. Cue battles over or around the crater, the villains plotting set off an eruption in one episode and dunking The Hero and his Humongous Mecha in the volcano in another one.
- Seen in Tengen Toppa Gurren Lagann, where it proves that the planet, like everything else in the series, is Hot-Blooded. Several characters explicitly compare Kamina to a volcano.
- Also used as a sort of Book Ends, in that during Kamina's final battle, simply combining Gurren and Lagann causes a volcano to explode, and during Super-Galaxy Team Dai-Gurren's final battle in Lagann-Hen, they create a giant volcano several times bigger than the galaxy they're standing on out of sheer badassness, for the sole purpose of making it explode. And it looks awesome!
- Code Geass is an exception to the "Mount Fuji never erupts" rule, as Lelouch deliberately sets it off near the end.
- Mount Fuji figures rather prominently in the second arc of Kaze no Stigma, and the mission is to prevent a demon from making it erupt. But that would be boring. Cue the cataclysmic final confrontation in a lava-field!
- In the Striker -world exist several stoneplates, that are parts of the mappa mundis, a macguffin, that show specific points of the world, where you can errupt Firesnakes thing. One of those places is of course, Mt. Fuji
- Averted in Magic Knight Rayearth, in which the volcano that Rayearth resides in, although active and spewing out a thick column of smoke, is never seen erupting violently.
- Averted in Yu-Gi-Oh! GX. Though a volcano exists and it's the site of several duels, it never erupts.
- An episode of Pokémon has Ash battling Blaine in his in-volcano Gym. It threatens to erupt on the following episode due to the Team Rocket trio. Around half of the episode is spent trying to prevent the eruption.
- Three-quarters subverted in ElfQuest. The volcano near Sorrow's End doesn't blow its top, it just rumbles very loudly. The rumbling triggers a stampede that the Wolfriders have to deal with. And then played straight in a much later storyline when the first major eruption in centuries coincides with an invasion.
- The island of Pulau-Pulau Bompa in Tintin: Flight 714.
- Carl Barks manages to pull one in a story set in Volcanovia... a country where even most back yards have active volcanoes. Volcanovians are so used to eruptions they no longer even pay attention to them, and only fear the huge Old Ferocio will awaken. And by the end of the story...
- Lampshaded in The Losers.
Jensen: Of course, it shoulda been obvious! I mean, what else, right...? Moment we set foot on an island with a volcano, of course it's gonna blow...!
- Joe Versus The Volcano, natch. This is how Joe is saved from being sacrificed to it.
- Subverted by Volcano: The movie is about a volcano suddenly emerging from the La Brea tar pits, so it doesn't get to loom threateningly in the background.
- In the James Bond movie You Only Live Twice, the SPECTRE base is in an extinct volcano. At the end the Self-Destruct Mechanism causes an eruption.
- The Incredibles had a variation. The volcano on Syndrome's island never erupts, but the rocket that Syndrome launches from inside the dormant cone is certainly reminiscent of an eruption, and it menaces Dash and Violet in much the same way.
- Mt. Fuji actually does erupt in Akira Kurosawa's Dreams. Of course it is, "just a dream."
- Averted in the film Lady Hamilton (1941), in which the smoking presence of Mount Vesuvius is used simply to establish the locale in Naples.
- When Time Ran Out..., Irwin Allen's last Disaster Movie, is about this.
- 2012, and guess where it erupted.
- In Alvin and the Chipmunks: Chipwrecked, the Chipmunks, David Seville, the Chipettes, and Ian Hawke are all accidentally marooned on a tropical island. Later on, Jeanette notices that the volcano on the island is about to erupt, and the climax of the film involved all of the them trying to get off the island before it does so.
- In Wreck-It Ralph, Vanellope takes Ralph to her hideaway inside Diet Cola Mountain, which contains the Diet Cola Springs, which will get aggravated by falling Mentos. Ralph kills the movie's Big Bad by sending ALL of the Mentos into the Springs, causing a massive surge to rocket into the sky.
- As an update of the Jungle Opera trope, Congo naturally had one erupt at the end.
- Averted in the comedy Water 1985. There's constant talk of the island's volcano erupting, but it never does.
- Return of the King: Mount Doom after the Ring is destroyed. In fact, Mount Doom all the time.
- The Secrets of Vesuvius: Mount Vesuvius's eruption, resulting in the destruction of Pompeii. Based on Real Life.
- Dragonriders of Pern plays with this trope, in the (chronologically) first book, the site of Landing, the colonists first settlement on Pern, is on a plateau between three volcanic cones, two of which are thought to be extinct and one dormant, sure enough a few decades after arriving they start getting signs show up that the dormant volcano is getting ready to blow. Surprisingly they actually begin plans to evacuate Landing and move the majority of the population to the more geologically stable northern continent, unfortunately all the schedules for moving equipment supplies was based on the dormant volcano being the one to blow so stuff nearest to that was given priority, and that's what they were watching for signs how long was left. Cue the actual eruption coming from one of the supposedly extinct ones a lot closer to the town, and a mad scramble to get the last loads of supplies and people out of the way. Averted in all the other books in that every single Weyr on the northern continent is specifically stated to be inside a volcanic crater but not a single one of them ever proves to NOT really be extinct
- Subverted in Journey to the Center of the Earth: the volcano our heroes descend in remains dormant, or the book would be rather short. The protagonists then get erupted out of another volcano, but since this one isn't introduced earlier (it only gets in the novel when it erupts) it's hardly an example of this trope.
- Surprisingly averted in the Coldfire Trilogy, which takes place on a very seismically active world that has lots and lots of volcanoes. There's at least one visited in each book: 1) in Black Sun rising, they visit a pirate base located in a caldera, which doesn't erupt; 2) in When True Night Falls, the main villain builds his base on a volcanic plane, but actually uses magic to make sure that the volcano is always venting, thus keeping pressure from building up; and 3) in Crown of Shadows, the series climax is set on a plotfully important volcano, which also does not explode.
- Invoked in Codex Alera. High Lord Kalare rigs a local volcano to erupt when he dies, but the First Lord deliberately forces said volcano to erupt prematurely. Later the First Lord sets off another volcano under the capital in a You Shall Not Pass moment.
- In Icerigger, the Place-Where-The-Earth's-Blood-Burns conveniently waits to blow itself to pieces until the protagonists just happen to arrive there.
- A Nancy Drew Files book was set in Hawaii. Is it any wonder that the requisite life-and-death climax took place over a volcano?
- Ashfall, and its sequel, 'Ashen Winter', center on the Yellowstone volcano erupting and majorly screwing up civilization, at least in North America.
- In Neal Stephenson's Anathem the volcano in question doesn't really erupt. At least not until after a super dense rod is dropped from orbit into its Caldera.
- Book I of the Cambridge Latin Course was set in Pompeii, and guess which historical event occurs at its climax?
- In the Long War by Terry Pratchett and Stephen Baxter, the forementioned certain national park in Wyoming starts rumbling across MULTIPLE parallel Earths. Since some scientists theorize that a Yellowstone supereruption would have a devastating effect on the planet similar to or more intense than a 'nuclear winter', this is likely to be a main plot point in any sequels. This particular example is so blatant that the foreshadowing underscores several major themes throughout the book: in particular, the survival of humanity in the face of world-ending disaster.
- Congo by Michael Crichton. The protagonists actually set off the volcano when they detonate a series of explosive charges that generate a resonant shock. In the film it just erupts naturally.
- The Astounding, the Amazing and the Unknown by Paul Malmont. During World War II, several famous sci-fi writers are seeking a device invented by Nikola Tesla — either a transmitter, a new source of power, or a weapon of mass destruction. L. Ron Hubbard is sent to a volcanic island where he finds one of the devices which does transmit voices (unknown to Hubbard, from his colleagues who have just found the control device). In what may or may not be a coincidence, at that point the volcano happens to erupt destroying the device, though Hubbard escapes. Hubbard is sick with a fever the entire time, and it's implied he developed the beliefs behind Scientology from all the bizarre events.
- The Mysterious Island: The titular island has a dormant volcano on it. Naturally, this becomes a major plot point.
Live Action TV
- Doctor Who has the eruption at Pompeii. This, of course, has the benefit of being an eruption that everyone should know is going to happen. Well, aside from the Pompeiians, anyway.
- LOST subverts this trope in a strange way. The Island is of the volcanic nature and said volcano was very non-gently namedropped in Season 3, with hints of its future importance from producers. However, it has never been brought back again since and even though the Final Episode features a certain location resembling an active volcano crater, it definitely isn't one.
- The novel Flip-Flopped features a vulcanologist whose dormant Hawaiian volcano flares up again.
- The Secrets of Vesuvius (TV adaption): Mount Vesuvius's eruption, resulting in the destruction of Pompeii. Based on Real Life.
- Forever Knight also has the Pompeii eruption. 'A More Permenant Hell' depicted Lacroix's backstory,showing General Lucius partying with his pals after returning from Gaul. Unfortunately, he lived in Pompeii, and the result was his daughter siring him to prevent him dying in the eruption.
- Subverted in the Russell T Davies series Casanova. The volcano doesn't erupt, but everyone in its shadow lives as if it's about to - using this as an excuse for insane levels of decadence.
- The "Basics" two-parter of Star Trek: Voyager has the Voyager crew marooned on an alien planet with a conspicuous volcano...
- Frank Ticheli's Vesuvius. An orchestrated piece about the title volcano. Does one NOT expect the song to suddenly get loud and vicious?
- Said loud atmosphere is what actually makes it a difficult piece to perform, since amateur musicians choose incorrect places to "erupt."
- Bob Dylan's "Black Diamond Bay", which spends several verses setting up a bunch of characters only to have a volcano erupt and kill everyone.
- Gorillaz song "Fire Coming Out of a Monkey's Head." To be clear, 'Monkey' is the name of a mountain. Or so it seems. This is more clear in the music video.
Role Playing Games
- Dungeons & Dragons adventure "In the Dungeons of the Slave Lords." The city of Suderham lies in the caldera of an extinct volcano. Guess what happens by the end of the module? The entire campaign of "The Shackled City Adventure Path" is based on the bad guys trying to cause a dormant volcano that has a city built into it's crater to erupt in order to fuel their demonic artifact. Possibly averted in that the characters have the ability to stop it (though are not required to for the completion of the campaign).
- The Curse of Monkey Island features a lactose-intolerant volcano. Worshiped by vegetarian cannibals. It doesn't go off unless you trigger it.
- In Paper Mario, Mt. Lavalava erupts.
- Super Mario RPG: Legend of the Seven Stars features a volcano that does not erupt, although one NPC does comment it looks like there's a lot of activity around it. The level doesn't count as much of a Lethal Lava Land either. Neither of these points, however, detracts from the dragon boss fight.
- Mario & Luigi: Partners in Time features Thwomp Volcano, which does blow up after the Boss Battle.
- Averted and played straight in Mario & Luigi: Dream Team. Averted with 'real world' Mount Pajamaja, which despite being temporary base to the Big Bad and a key part of the plot, doesn't erupt at any point during the story. Played straight with the dream version, which does (because you actually try to get it to blow up to open the portal again). Also, the dream one is... a sentinent being which tries to kill the Mario bros, so it turns out the whole eruption idea wasn't the best one.
- Golden Sun. Mt. Aleph. I think that about covers it.
- The Legend of Zelda: Ocarina of Time, to fulfill the requirements of a completely different trope. The only one that actually erupts is in Oracle of Ages. Ocarina's Death Mountain does erupt just enough to rain flaming boulders on you whenever you get near the summit. It also lets out a shockwave when Volvagia is defeated, but the only effect is to clear the skies, knock that guy on the Kakariko rooftop flat on his back and get ash trapped in a nearby Goron's eyes. Another one erupts in Oracle of Seasons when Link deliberately uses bombs to set it off.
- The second Dark Sun game, Wake of the Ravager, had a volcano level; if you took too long to complete it, the volcano would blow and you'd get a Nonstandard Game Over. Unfortunately for those playing on modern computers, the game clock seems to run on processor speed, so unless you know how to adjust the proper settings, it is impossible to complete the level and, by extension, the game, before the volcano blows.
- The Elder Scrolls III: Morrowind manages to avert the eruption part while still giving the volcano importance. The Red Mountain only belches smoke throughout the game, but does house the Volcano Lair of the game's antagonist.
- Following the events of Oblivion and a nearby Colony Drop, the volcano did erupt. As a result, Vvardenfell's settlements were destroyed (and resettlement still isn't completed by the time of Skyrim) and Morrowind had a Red Year where there wasn't a summer.
- Inevitable in Dwarf Fortress: If there's lava somewhere on the map, it will eventually be pumped onto the surface by the player. There's a bug where if a volcano is spawned overlapping a bottomless pit on a local map, the result is an instantaneous eruption, forest fire, and death.
- Not quite inevitable nor an eruption anymore; since there are no bottomless pits and volcanoes don't naturally erupt, any lava/magma flooding is engineered by the player, due to shortsighted or deliberate design. Knowing that magma is present in every map leaves abusing it as the only dwarfy thing to do, volcanoes simply open up options much sooner.
- In Pokémon Ruby/Emerald, one group is actively trying to cause the volcano to erupt, while you and the other group have to prevent it. (In Sapphire, the other group is trying to cool it down so it can turn into a lake instead; this is treated as an equivalent act of evil despite the obvious but unstated difference that blowing it up will kill people while cooling it down will not).
- Well, cooling it would ruin the livelihoods of the people in the nearby town, who rely on the volcano's geothermal energy for things like heating their famous hot springs, and might affect tourism. Not as evil as setting the volcano off, but not particularly nice, either.
- Team Aqua are aquatic Pokemon-biased ecoterrorists. The main problem with them cooling the volcano down would be the destruction of the habitat of all the Fire-type Pokemon that live in and around it.
- Cinnabar Island erupts between the events of Red/Green/Blue/Fire Red/Leaf Green and the events of Gold/Silver/Heart Gold/Soul Silver.
- Averted in Mother 3. The volcano never erupts... until the very end of the game, but then again, the WORLD is erupting.
- The Stable Time Loop in Icewind Dale II in Dragon's Eye.
- In Romancing Sa Ga 2 there is one if you let it blow, you can get Shadow magic but lose the Salamander class character
- Dragon Quest III is the first Dragon Quest to feature a volcano. Naturally, you make it erupt for the purposes of getting a magic MacGuffin. The quest to make it erupt takes fully a quarter of the game. Said volcano also plays a key role in the backstory — and the Attract Mode cutscene.
- Dragon Quest VII plays with this: the very first thing you see upon arriving is the volcano erupting! ...In a vision, anyway, which you then have to prevent.
- Final Fantasy Mystic Quest: The volcano erupts at the end of the Lava Dome stage. That's right, while you're inside it. And the lava flow cools quickly to make a new path you can walk along. Convection Schmonvection.
- Mt. Zublo in Breath of Fire III erupts, blocking passage around it and an entire section of the game is dedicated to getting around it. Even having to inevitably go through it.
- Averted and possibly justified with Mt. Zaleho in Tales of the Abyss. Auldrant's crust has been raised some several kilometers above the planet's mantle for the past two thousand years or so, reducing Mt. Zaleho's activity. While its volcanic activity increases significantly after the land is lowered, it still doesn't seem to pose any significant danger to Daath.
- In Kingdom of Loathing, a volcano plays an important part in the Nemesis Quest, containing a puzzle that requires using constantly-shifting chunks of rock floating in magma as stepping stones in order to reach the final showdown with your nemesis, with the volcano erupting if you win. Lampshaded as it becomes clear that the underground tunnels you chase your nemesis through are leading into the volcano: "On reflection, this was inevitable, really. I mean, you can't just have a Final Boss Battle near a volcano. It would be like having a car chase in which the fruit cart doesn't get knocked over. Or fighting crime in a giant robot and never using Rocket Punch."
- Averted in Cadillacs and Dinosaurs . Throughout the game the volcano is smoking away in the background, and though the characters keep thinking it's going to blow, it's actually the smoke from the factory concealed within.
- The last three missions of Guild Wars: Prophecies take place on or directly adjacent to a massive volcano, with two climactic battles in its active crater. It explodes at the very end of the campaign.
- In World of Warcraft's Cataclysm Expansion, in the Goblin starting zone, there is a volcano- and inside it is a giant turtle called the "Volcanoth". You have to kill that turtle with a bunch of missiles- the death of the Volcanoth and the explosion from the missiles... triggers this trope.
- King's Quest VII has an interesting variation. The volcano is active, but some Steampunk-type machinery in use by the trolls keep it from blowing. However, Malicia would like to use it to get revenge on Etheria, the Fairy Kingdom, even if everything else is turned to slag in the process. It's up to Valanice and Rosella to prevent this.
- Seiken Densetsu 3 - the heroes shipwreck on a remote volcano island that's slated to go off at any moment (the screen even shakes from time to time with pre-eruption tremors), but of course it doesn't go off until you've accomplished all that you're supposed to and you have a way off the island. (Hooray for conveniently passing by turtles!)
- Bug! has one in Arachnia's background. Bug pushes Queen Cadavra into it when he beats her, causing it to erupt.
- Averted in Creature of Kapu Cave, in which the danger Nancy encounters around a volcano isn't from it erupting.
- If there's a volcano on the map in Outpost 2, it will always eventually erupt.
- The island of Karedonia in the Whateley Universe is two-thirds volcano, and it's been mentioned more than once that the supervillain who runs Karedonia, Gizmatic, has the ability to blow the volcano if he needs to. So no one dares attack him or try to unseat him. In "Saks and Violence", when he threatens to disinherit his child Jobe, She-Beast plays the Chekhov's Volcano card, threatening Gizmatic because Jobe also knows how to unleash the volcano. (Gizmatic is unimpressed. He's a supervillain, after all.)
- The Batman: The Animated Series episode "Day of the Samurai" uses this trope.
- Superman: The Animated Series episode "Action Figures" features Brain Uploading Cyborg Metallo washing up on one. A research and excavation team are also there, noting that the volcano will erupt soon. Naturally, it does by the time Superman shows up so he and Metallo can fight and immerse each other in the lava.
- Avatar: The Last Airbender "The Fortuneteller" has Aang and Sokka discover a volcano is ready to explode while hiking up there for other reasons. Apparently the townspeople used to monitor it, but stopped doing so once a fortune teller moved in and they figured she'd just tell them if the volcano erupted.
- To Sokka's great annoyance, her fortune was still technically correct because she only predicted that the town would not be destroyed - she didn't say whether or not the volcano would actually erupt.
- Another example is explicitly averted - the Fire Nation capital is built on top of a a volcano. However, it never explodes, probably because there's enough firebenders around to "appease" the volcano, or something.
- It's implied to be extinct. The main Fire Nation prison is in a boiling lake inside a volcano. Volcanoes are common in the Fire Nation, and so the locals probably have some way of knowing which ones are sleeping, extinct, or active.
- The Legend of Tarzan, in the episode "Tarzan and the Volcanic Diamond Mine".
- The plot of Garfield In Paradise involved one.
- The volcano in The Land Before Time II erupts, naturally.
- In Atlantis: The Lost Empire, the main characters and their group of explorers fall through a cave into a dormant volcano. When they assume that it could blow at any minute, the geology expert of the bunch says that it shouldn't be possible without a huge explosive force. However, at the end of the movie it turns out the an exploding hot air balloon will do just fine and the whole thing goes up anyway.
- Subverted in Jackie Chan Adventures, where the Monkey King makes a Hawaiian volcano erupt... with lava made out of gelatin.
- At the beginning of The Transformers, the Transformers crash into a volcano and go into stasis, where they remain until an eruption reactivates the ship four million years later.
- Comically subverted in The Road to El Dorado. The volcano starts to erupt when it suddenly stops rumbling and burps out a single puff of smoke. That Tulio just happened to shout "Stop!" at that precise instant is what convinces the natives that he and Miguel were gods.
- Subverted in the Super Friends episode, "Volcano." Here, the volcano never erupts considering that the alien ship that crashes into its magma pool and the superheroes trying to rescue it have enough to deal with as it is.
- X-Men: Evolution had one. It erupts twice.
- Gummi Bears: The "My Gummi Lies Over the Ocean" episode.
- The volcano at Hawaii in the finale of Total Drama World Tour.
- The very third episode of South Park is called Volcano and naturally is about a Volcano eruption near the town. In more than 200 episodes since that Volcano was never mentioned again.
- Averted in Beast Wars. The volcano under the Predacon base never erupts, despite the ever molten lava. Also the volcano the Maximals move into doesn't erupt either, because they know it doesn't erupt until 1984.
- In the Pinky and the Brain episode "Brainania," the Brain attempts to establish his own country on a volcanic island. Smart move.
- The episode of The Simpsons where Homer actually becomes a missionary on a tropical island as an attempt for him to escape an angry mob of PBS staff ends with Homer and "Lisa Jr." accidentally causing a volcano to erupt by ringing a church bell too loudly.
- One episode of Young Justice had a villain named Red Volcano attempting to destroy Earth by setting off one of these. And guess where.
- Double subverted in an episode of Totally Spies!, where the spies are "captured" and dangled over an apparent Lava Pit, but it turns out to just be a training exercise. Then the real volcano starts erupting.
- The volcano in the Goofy cartoon "Hello Aloha".
- Ivor The Engine featured an extinct volcano called Smoke Hill which in one episode was seen smoking. Subverted, in that the actual cause of the smoke was a dragon's egg in the crater.
- Vesuvius, of course. Etna in Sicily erupts quite frequently, and Stromboli off the Sicilian coast is in a nearly constant state of eruption.
- Mount Rainier is feared to be this. Largest Volcano in the lower 48, one of the broadest in the world in terms of glaciers and craigs and area. Tacoma and Seattle, with about 3.5 million people, lie nearly entirely on old mudflows from the volcano that are less than 200 years old.
- The volcanoes of the Hawaiian islands erupt (well, ooze) frequently, meaning the islands are slowly growing bigger (and volcanoes that are now underwater may someday reach the surface, as more lava builds up higher).
- The geysers, hot springs, and "paint pots" of Yellowstone National Park are all caused by geologic activity from a massive caldera that spans the whole region. Pray it never, ever explodes.
- The Yellowstone hot spot is located in Wyoming. The Yellowstone Volcano Observatory is based out of the University of Utah in Salt Lake City, some 250-plus miles to the south.
- The Yellowstone Hot Spot is actually just the latest in a long line of hot spots extending back to the Southwest over several states. The North American plate moves and the hot spot gradually shifts.
- Although many supervolcanoes or megacalderas are extinct now, there are still some active ones, not just Yellowstone. Taupo in New Zealand is another still active one.
- According to the documentary The Last Day of the Dinosaurs, the asteroid that caused the mass extinctions at the end of the Cretaceous period possibly caused this trope to go Up to Eleven. Allegedly, the seismic catastrophes created by the impact may well have caused long-extinct volcanos to erupt again.
- The leading contender for the cause of the Permian-Triassic Mass Extinction (also known as The Great Dying and an event that puts the Cretaceous-Tertiary Mass Extinction to shame) is the eruption of the Siberian Flood Basalts, the largest volcanic event known to have occurred on Earth.
- The Toba catastophe theory, which not only reduced humanity to a few thousand individuals (fortunately, that wasn't enough back then), but may also have been the true cause of the last ice age, or at least hastened its arrival, which it was coincidentally followed by. In fact all supervolcanic eruptions can lead to an ice age.
- Inverted with permafrost. Due to its involvement in climate change, it is not really permanent at all, and it contains a huge amount of carbon dioxide and methane (both greenhouse gases) frozen within it, assuming if the above was true.
- The Thera eruption, which wiped out the Minoan settlements on Santorini some 3600 years ago, and possibly caused a tsunami that destroyed coastal communities and agricultural areas on Crete 200 km away. This eruption might have been the basis for the Atlantis myth.
- Krakatoa is still feared to be this, or more precisely Anak Krakatau, 'Child of Krakatoa'. After the original volcano blew itself apart in the late 1800s, a new volcano started growing out of the caldera the old one left.
- Tambora, which spewed so much dust into the atmosphere that it lowered temperatures for several years and made 1816 'The Year Without a Summer'.
- The largest volcano known to mankind, Olympus Mons, poses no threat to anyone but possible future Mars explorers. Estimates for how long it's been inactive range from 2 million years ago to back in Jurassic times; astrogeologists suspect that its activity cycle is much less regular than that of Earth's volcanoes, as Mars has no plate tectonics to dictate when pressures build up within its magma chamber. Hence, if and when it does erupt, there won't be much prior seismic activity to give an advance warning.