• 7 months ago
Ocean water that's more dangerous than sulfuric acid sounds like a scary movie, plot, but... Brace yourself because it's real! And that's just the tip of the iceberg – ever heard of limnic eruptions, those terrifyingly powerful mudflows called lahars, or the ominous anvil clouds signaling impending doom? How about pyroclastic flows or subterranean fires lurking beneath our feet? And don't even get me started on underwater volcanic eruptions and those sneaky sinkholes that pop up out of nowhere! It's a wild world out there, full of natural wonders and dangers that'll make your hair stand on end! Animation is created by Bright Side.
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Category

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Fun
Transcript
00:00 Hey, don't freak out!
00:05 Those red waters you see aren't blood oceans, it's just a natural occurrence called the
00:09 red tide.
00:11 Red tides often happen in Florida, especially in the West Florida shelf, and they can stick
00:16 around for weeks or even months.
00:19 They're basically caused by an increase in algae levels, hence the color.
00:23 Those algae produce toxins that can be harmful to marine life.
00:27 They can also be bad news for us humans, causing symptoms like upset stomach and, uh, urgent
00:33 bathroom trips, if you're picking up what I'm putting down.
00:41 Volcanoes are super scary, but there's nothing scarier than getting taken out by a pyroclastic
00:45 flow.
00:46 These fiery flows move crazy fast and reach insane temperatures, like hotter than your
00:51 oven on a pizza night.
00:53 They're like a firework show of volcanic eruptions filled with ash, lava, and hot gas, speeding
00:59 down mountains at 50 miles per hour.
01:02 Some researchers claim they might even hit speeds of 450 miles per hour, almost as fast
01:09 as a passenger jet.
01:11 If you're unlucky enough to be in the path of a flow, you're in big trouble.
01:15 The heat alone can turn you into a human barbecue, even if you try to hide in a building.
01:21 The air around the flow can reach temperatures high enough to fry your insides, burn your
01:25 clothes off, and leave metal melted into your skin, which almost sounds like a Marvel origin
01:31 story.
01:32 However, a lot of people have met their end because of these flows.
01:36 But there's one crazy story about a guy named Luger Silbaris, still sounding like an origin
01:41 story.
01:43 So on the 7th of May, 1902, there was a major eruption on the island of Martinique.
01:49 The night before, Silbaris had gotten into trouble and ended up in jail.
01:54 Maybe this is a villain origin story.
01:56 He'd been locked in a sturdy cell facing away from the volcano.
02:00 The next morning, Mount Pella unexpectedly erupted, destroying Saint Pierre within minutes.
02:06 The flows wiped out around 30,000 people, but Silbaris survived in his cell and became
02:12 known as the guy who lived through doomsday.
02:16 The rescue team found him four days later.
02:19 By the way, the cell still stands today.
02:22 I hope somebody tested him for superpowers!
02:28 Back on August 21st, 1986, a guy stumbled upon some animals showing no signs of life
02:33 on his way to Nios village in Cameroon.
02:37 To his shock, he later found out that everyone in the village had mysteriously passed away.
02:42 The same thing happened at Lake Manoun in 1984.
02:46 Turns out, those tragic incidents were caused by something called limnic eruptions, which
02:52 are pretty rare disasters where carbon dioxide suddenly bursts out of lake waters, creating
02:57 a hazardous gas cloud.
03:00 These type of eruptions usually happen in lakes with high levels of CO2, which can be
03:04 caused by things like volcanic gases and high pressure.
03:08 Any little change in temperature or pressure can set off an eruption.
03:12 So experts have started looking into ways to safely release CO2 from lakes like Manoun
03:17 and Nios in order to lower the risk of more disasters in the future.
03:25 In March 2024, a video captured a terrifying moment of a woman disappearing into a sinkhole
03:31 while browsing through a Chinese department store.
03:33 Guess she got more than she bargained for!
03:37 Moving on!
03:39 The scene unfolded as the floor beneath her gave way, sending her plummeting into the
03:43 abyss.
03:44 In the midst of the chaos, another customer frantically ran away before returning to check
03:49 on the woman who had fallen.
03:51 Their quick thinking and the swift response of emergency crews and firefighters saved
03:55 the day, resulting in only minor injuries for both women.
03:59 I'm glad that lady checked on her because I would be gone!
04:05 An anvil cloud is basically a big cloud made of ice particles that forms at the top of
04:10 really tall thunderstorms, or those huge cumulonimbus clouds.
04:15 The flat top shape is caused by the air rising in the storm and spreading out when it hits
04:19 the stratosphere.
04:20 That's why it's called an anvil.
04:22 It looks like the tool metal workers use.
04:25 Duh!
04:26 The air from the anvil cloud is cooler than the stratosphere air, which keeps it from
04:30 going any higher.
04:32 You can spot anvil clouds from really far away, sometimes over 100 miles.
04:37 Often you might see streaks of snow coming from the edge of the cloud, known as virga.
04:42 The snow disappears before hitting the ground because of the dry air.
04:46 If you notice clouds poking through the flat top or bubbling up, it's an overshooting
04:51 top, a sign of a super strong storm.
04:54 Anvils are known for producing dangerous lightning.
04:57 Normally, lightning comes from the bottom of a storm, but anvil clouds can produce really
05:02 powerful lightning from the top.
05:04 This lightning can strike out of nowhere, even from up to 30 miles away.
05:08 So keep an eye on those anvil clouds if you see one forming nearby.
05:16 Lahars are no joke.
05:17 They're basically fast-moving, super dangerous streams of rock, ash, and water that come
05:22 down the slopes of volcanoes.
05:24 It's important for everyone to be aware of them.
05:27 Scientists, policy makers, and even us regular folks.
05:30 By understanding how lahars work and their potential impact, we can try to stay safe
05:35 when volcanoes start acting up.
05:37 Saving lives during natural disasters is the name of the game.
05:41 There are two main types of lahars.
05:44 Debris lahars and mudflow lahars.
05:47 Debris lahars are full of solid stuff like rocks and ash, while mudflow lahars are more
05:52 waterlogged and sludgy.
05:54 Lahars can be triggered by the rapid melting of snow or ice, heavy rain falling on loose
05:59 volcanic material, or even a crater-like eruption.
06:03 The volcano's characteristics and presence of water are key factors in how lahars form
06:08 and move downhill.
06:09 When lahars come barreling down mountains at speeds of up to 120 miles per hour, carrying
06:15 loads of debris, it's a recipe for disaster.
06:19 Unless you have a surfboard, but I doubt you'll have a surfboard on a volcano.
06:23 Just saying.
06:24 Also, it won't work.
06:29 Going to the beach for a sunny vacation is the best.
06:32 There's nothing like basking in the sun, feeling sand between your toes, and hearing
06:36 waves crash against the shore.
06:39 But even though it's all relaxing and picture-perfect, always keep an eye on the water and never
06:43 turn your back on the ocean.
06:46 You may know about rip currents and tides, but have you ever heard of square waves?
06:51 It's a real thing, and it can be pretty scary.
06:54 Square waves, also known as cross seas, happen when two swells meet, forming a unique square
07:00 pattern that looks like a checkerboard.
07:02 They can be found along coastal areas, and while they are rare, they can create waves
07:07 up to 10 feet high and make it tough for boats and swimmers to maneuver.
07:11 If you find yourself in the water with square waves, you might feel like you're fighting
07:15 against two different currents.
07:17 The best thing to do is to not go too far out to begin with, and get out of the water
07:21 as soon as the waves become too strong.
07:24 Square waves are more dangerous for boats and ships, so it's best to stick to the shallow
07:28 waters and stay safe.
07:33 Whirlpools and maelstroms are powerful natural forces that have scared sailors for years.
07:39 They happen when certain weather and current conditions come together just right.
07:43 Most of them are safe if you stay away, but let's see what they really are and how they
07:47 form.
07:49 A whirlpool is basically water that starts spinning when two currents meet or one current
07:54 hits something solid like a wall.
07:56 They can be big or small, depending on the speed of the water and waves.
08:01 Most aren't dangerous, but there are also maelstroms, which are large, forceful, and
08:05 violent whirlpools, caused by ocean tides and narrow straits.
08:10 Maelstrom currents in places like Norway's Saltstromen and Mokstromen can create massive
08:15 whirlpools.
08:16 Scotland's Coribreken whirlpool is one of the world's largest.
08:21 Other examples of whirlpools can be found in Japan, Canada, and New Zealand.
08:25 Are they portals?
08:28 They're definitely not portals.
08:33 Researchers have recently looked into ancient underwater volcanic eruptions and how they
08:37 affected Earth's climate.
08:39 They studied materials from Bronze Age eruptions to learn more about their scale, dangers,
08:44 and impact on climate.
08:46 For example, one eruption about 3,600 years ago in the Aegean Sea caused chaos in Santorini.
08:52 The study focused on this event to understand its importance.
08:56 By analyzing volcanic deposits, the researchers gained insights into how future eruptions
09:00 could affect climate.
09:02 They discovered that sediment waves from shallow underwater eruptions could lead to tsunamis
09:07 and impact the ocean floor.
09:10 These findings help us understand how underwater volcanic eruptions relate to the marine environment,
09:15 which can help us predict climate changes in the future.

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