What If All of the Volcanoes on Earth Erupted at Once?

What if one day you turned on
the news channel to see this… Breaking news… …volcanic eruption… …already caused 2 million casualties… …all airports are closed… If all the volcanoes on Earth erupted at once, This is WHAT IF, and here’s what would happen if all the Earth’s volcanoes erupted at once. Not all volcanoes would pose a danger. Extinct volcanoes – those that haven’t erupted
in the last 10,000 years – just don’t have any magma left to erupt again. However, at any given time, there are 10 to 20 volcanoes
erupting somewhere on Earth. In total, there are 1,500 active volcanoes on land, and an unknown number of them underwater. What if all of them erupted at once? What would this apocalypse look like exactly? If all active volcanoes on Earth
went off at the same time, there would be a lot of explosions. Explosive eruptions would churn
out wall of rocks, ash and gas, wiping out the nearby areas. You wouldn’t be able to
outdrive that giant hot cloud – rocks as hot as 1,000°C (1,830°F) would be
traveling faster than as 700 kph (450 mph). But not all volcanoes would erupt that powerfully. Instead of violently expelling magma, some volcanoes would steadily
eject it onto the ground. That’s called an effusive eruption. If your local volcano erupted that
way, consider yourself lucky. But not for too long. Other eruptions would be sending
plumes of ash up into the air. These would travel for thousands of kilometers, and cover the Earth with the thick blanket of ash. Ashy clouds would block the sunlight, plunging
the whole planet into complete darkness. Without sunlight, there’s no
chance of photosynthesis. All the plants would die, including all
the crops that feed us and the animals. Because volcanic ash is actually tiny
rock particles, it would be very heavy. If enough ash were to fall on your
roof, your home would collapse. And you’re not escaping this in an airplane. The hot clouds of ash would
melt car and plane engines. The hot clouds of ash would
melt car and plane engines.
All flights would be canceled anyway
because of the low visibility. All flights would be canceled anyway
because of the low visibility. Deep ocean volcanoes make the water acidic. In this kind of environment, sea
life would suffer huge losses. The entire food chain would be devastated. Because no sun rays would
reach the Earth’s surface, the planet would significantly cool down, to the point where we might
end up in a new Ice Age. In the long-term though, the global temperatures would change again, this time getting much hotter. With all carbon dioxide
released during the eruptions, we’d see a tremendous greenhouse effect, that would start roasting the planet. Now, if you survived the volcanic explosions
and didn’t die from breathing in the ash, the safest place for you might be
on a ship in the middle of the ocean. Or in an underground bunker. Just make sure you have enough
food supplies and warm clothes to keep you alive in this post-apocalyptic world. Before coming out, you’ll need to
wait until the atmosphere clears up. That’s going to take a very, very long time. And you wouldn’t be seeing
the Earth you once knew. Prolonged volcanic eruptions
spewing from the planet’s mantle would dump this partly-molten layer on
the surface, causing a mass imbalance. As a result, our planet might tip over – just like Mars did about 3.5 billion years ago. Paris might end up on the North Pole. Of course, as always, such a
scenario is very unlikely to happen. At least there is no evidence of
all volcanoes erupting at once in the 4-billion-year history of Earth. But is it better to be prepared for everything?

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