How do you imagine the world's most powerful volcano eruption? Boiling-hot orange lava spilling over the slopes of a mountain and destroying everything in its path? Huge clouds of ash, blacking out the sky and wiping out all the life in nearby towns? Toxic gases that sneak into the smallest nooks? But do you know that you might not even notice this devastating event? Few people know that around 80% of all volcanic eruptions happen underwater. What's more, submarine volcanoes alone spit out more than 75% of the world's magma. There are over 1 million underwater volcanoes on our planet. But as you may guess, it's very hard to explore and examine these underwater monsters. No wonder scientists almost missed the largest underwater volcano eruption of our time!
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TIMESTAMPS:
Huge pumice rock raft 1:02
Surprise for researchers 1:52
How underwater volcanoes erupt 2:58
What was so unusual about the Havre volcano eruption? 3:59
How climate changes may affect volcanoes 5:00
What if all the volcanoes on Earth lost their stability 6:02
The worst consequences 7:35
#volcanoes #whatif #brightside
SUMMARY:
- A Kiwi passenger was flying back home after having an amazing vacation in Samoa, when something strange attracted her attention.
- This moving carpet, which spread for a whopping 150 square miles, was the result of the greatest submarine eruption in modern history!
- Havre Seamount volcano, which exploded on July 18, 2012, lies between American Samoa and New Zealand in the southwest Pacific Ocean.
- The seafloor, miles away from the volcano, was littered with giant pumice blocks, and some of them were the size of a van!
- Underwater volcanoes are usually gentle giants that don't bother us too much. When they erupt, it can easily go unnoticed, due to their distant location.
- If you were somewhere around at that moment, you would see the ocean start to bubble furiously, and you’d smell the disgusting stench of sulfur.
- But it turned out that the Havre volcano eruption was an unusual one. The caldera (which is a large crater that appears after massive eruptions) spanned for almost 3 miles, and 14 vents in it spewed out huge amounts of lava.
- But the most interesting thing was that the volcano produced not only pumice rocks, but also lava domes, ash, and even underwater lava flows!
- Climate changes may affect not only weather and sea level, but also trigger disastrous volcanic eruptions all over the planet, both underwater and on land!
- You can probably imagine the panic every single person on the planet would feel should all the volcanoes erupt at once.
- Once inhaled, volcanic ash turns into a glass-like substance inside people's lungs, and you can probably guess the tragic outcome.
- By the end of the eruptions, the world would be encompassed by a volcanic winter, and the very concept of seasons would become outdated.
- Eventually, the climate would get so incredibly hot that all the trees and plants would die out, all the oceans would boil away, and Earth would turn into a Venus-like place.
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