Questions tagged [volcanoes]

For questions involving volcanoes, volcanic eruptions, and related phenomena, whether or Earth or elsewhere.

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2answers
203 views

Would it be possible to have fresh water in a world where there was a major volcanic eruption which destroyed all civilisation apart from one city?

For an area in a world I am creating, 300 years prior to the present day, the northlands were destroyed by major volcanic eruptions. Would it be possible for there to be water accessible to a party ...
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2answers
184 views

Molten Whirlpool planet

Premise; A magma/lava planet tidally locked around its sun. The side facing the sun is always erupting lava, the dark side is a cooled shell, which sinks into the magma beneath in a global whirlpool. ...
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1answer
142 views

A layer of igneous rock over a large area

How big of a volcano would be needed for a large (Alaska-sized) area on an Earth-Like planet to be covered in a thick shell of igneous rock? Would that volcano also destroy the world or make it ...
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5answers
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Considerations for a Dwarven Volcano City

Related: Could a Dwarven Civilization Exist? Background: A Dungeons and Dragons world (for all intents and purposes, Tolkein lore is close enough) in which a group of colonists far from home are ...
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2answers
217 views

Volcanic winter related to moons?

My Kepler Bb planet has 4 moons and is habitable. So that is good. But all 4 of these moons are major moons which while indeed possible, could be a problem. You see, these moons are in resonance so ...
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6answers
354 views

How could an island surrounded by scalding steams be accessible in medieval age?

Set in the medieval period, preferably around 15th century, there is a habitable island the size of New York surrounded by boiling water inside the mouth of a volcano. How could you explain that there ...
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3answers
135 views

Supervolcano Defense - 2100

In the year 2100 the population of the United States is close to near one billion people (thanks to refugees from the Great Islam War in Europe). Advanced seismic technologies have detected that the ...
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3answers
2k views

Benefits to Yellowstone Eruption today?

If the Yellowstone Supervolcano did happen to erupt within the next ten years or so, what benefits would there be to humanity? I understand that there would probably be many extinctions to other ...
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4answers
11k views

What would happen to Earth if Yellowstone Erupted

In a world I am building; Humanity has left the earth and now only the plants, animals and cities remain. Many animals continue life undisturbed, while other went extinct. But with the disappearance ...
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1answer
411 views

Russia's Alternate Geological History

Since the geological history of the world's largest nation is as big as the nation itself, and since I don't have a master familiarity with Russia's formation over hundreds of millions of years, I'm ...
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2answers
172 views

Californian Yellowstone

North America's largest and perhaps most popular volcano is the plume of mantle situated right beneath the surface of what we arbitrarily call Yellowstone National Park. This image shows the two most ...
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3answers
633 views

Geopolitical and Economic Implications of a Large Eruption at Yellowstone

Yellowstone National Park is the site of a large supervolcano that is somewhat due for an eruption in the geological near term. I have seen slides and discussions to the effect that large portions of ...
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2answers
555 views

The Subductive Hotspot

On Earth, there are only two different ways to create major volcanoes. One way is subduction. It occurs when older/heavier rock sinks beneath younger/lighter rock. As the rock descends, it ...
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6answers
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Could I intentionally trigger a Yellowstone eruption?

I'm very interested in a post-eruption setting in the continental United States. Unfortunately, it looks quite unlikely that a serious caldera-forming eruption is in our near future. However, we're a ...
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2answers
2k views

Would it be possible to create an artificial volcanic island?

A volcanic island can obviously come into existence quite easily and swiftly by natural causes, as evidenced for instance by the appearance of Surtsey off the coast of Iceland. However, people have ...
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3answers
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Blue Cryovolcanic Planet

Everybody, even those who are complete beginners in the field of Astronomy, know Io, the cryovolcanic moon of Jupiter that looks like a burned pizza with skin cancer. Volcanoes constantly spit out ...
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2answers
250 views

Could the Siberian Eruption Get Any Bigger?

Background Information: 252 million years ago, Siberia erupted, releasing enough lava to fill in a volume anywhere between one and four million cubic kilometers. Any time someone thinks "large ...
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3answers
771 views

Which type of creatures could exist in a volcano world?

Yes, no one, only bacteria and with luck. Let's suppose that: It is a fantasy world; The creatures live in a dormant volcanoes zone; The neighbors volcanoes are about 5 km and they are still ...
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1answer
180 views

History Rewritten…By Katla Volcano [closed]

In 2010, the Icelandic volcano of Eyjafjallajökull (a pronunciation guide to this will be much appreciated) had released a cloud of ash that enveloped all of Europe, a good deal of Asia and the ...
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1answer
322 views

If a Volcano Killed Rome Instead of the Barbarians

In the fourth and fifth centuries AD, the Roman Empire had fallen under bad times. Within its boundaries, the once powerful nation had been getting compromised by political corruption and civil ...
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4answers
2k views

Castle surrounded by lava

After watching first Shrek, I got interested in one detail: Can you build a castle which is surrounded by lava, using medieval technology? For scope of this question: Imagine ultimate wealthy king/...
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5answers
653 views

Volcanic Debris Clouds In Planet's Low Orbit?

I have a few questions related to a crazy setting I'm working for my novel. Let's say we have a planet with a thin atmosphere and low gravity. It's volcanic activity is so intense that the planet has ...
5
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1answer
221 views

Bay evaporated by a volcano

In the world I am designing, I want to have a bay with a tight bottleneck, filled with salt water from the ocean. You can think of the bay as river shaped. To avoid creating a "C" shaped island I want ...
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6answers
5k views

How would we try to defuse Yellowstone?

There exists a fictional future world where we have determined space travel is impractical for the majority of the species, despite the fact that technology is more advanced than today. There are no ...
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1answer
872 views

Is a volcano civilization possible?

I would like to create a civilisation that develops near active volcanos. In ancient times, they would make good use of volcanoes like: Use lava as heat resource. Use lava as material to make bricks, ...
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1answer
108 views

Effects on wildlife of having permanent smoke in an area

The setup: A thick mountain chain is permanently covered in smoke. The smoke comes from several active volcanoes within the mountains, and is kept from dispersing by magic (the magic plays virtually ...
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3answers
659 views

Can I harness a volcano as a weapon?

This may be the first of a few questions in a series about building a medieval mountain fortress. I'll wait and see what the reaction is. In the middle of a series of mountains lies a stratovolcano ...
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4answers
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Size of the volcano that ends the world

One of the theories behind the extinction of the dinosaurs is the eruption of one or a series of volcanoes. Supposedly the ash expelled by these eruptions blocked out the sun, killing plants and thus ...
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3answers
576 views

Habitability of an icy volcano planet

Suppose we have a rocky planet (somewhere between Earth- and Super-Earth- sized) orbiting a star far enough away that it would be around Pluto's temperature if sunlight was the only heat source. If we ...
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7answers
455 views

What factors could delay the rescue of a small group of survivors on a Pacific volcanic eruption?

The rag-tag group of natives and tourists somehow survived for a week on the manor by the cliff, while the volcano still spits lava and pyroclastic clouds all around. Just before the last cell tower ...
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2answers
654 views

How close is too close for a human habitation to be near an erupting volcano?

I am working on a survival suspense story, where a sizeable group of surivors is trapped in a tropical island (somewhere in the Ring of Fire) by a volcanic eruption. They find shelter from the ...
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10answers
4k views

How large can a volcano be?

A key part of the plot in a story I'm working on revolves around the main region being on top of volcano that is set to erupt. The trouble is that the region in question in my setting is roughly the ...
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4answers
501 views

Artificial volcanos on Mars to recover its atmosphere

I am developing a plan to colonize Mars. Due to Mars' current lack of dense atmosphere and lack of oxygen (its found only as traces), I am setting the following plan: Bore holes through Mars' ...
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1answer
291 views

Volcano the size of Australia

What would happen a volcano the size of Australia were to erupt? How high on the extinction-list would it rank? Would it be above the asteroid that hit Earth and killed the dinosaurs? Which known ...

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