Volcanoes: Formation, Types, and Activity

It's time to talk about everyone's favorite geological feature, volcanoes! What are these things? Why do they erupt? What are the different types of volcanoes? How do they form? What happens to their lava? Let's learn about all of these and more!
Script by Jared Matteucci
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[@isaacaroon6253]

This video seems pretty fitting to what is going on in Iceland right now. Thanks!

[@matthewjackson337]

Alevel geography student from UK here, really helpful & informative video thanks!

[@insomniak4515]

Always a good day when Dave uploads. Volcanos are an enjoyable subject for me, thank you so much!

[@DerkmanX]

The Colombia river basalt flats are fascinating. The terrain changes so drastically when you travel thru central Washington and Oregon

[@66bloodmoon]

Is it beautiful?

[@ianrodgers6190]

I learned about volcanoes and earthquakes when I was a freshman year in high school. And, I took an earth science class at that time, and I still remember them to this day.

[@Karlski420]

Why are you here then?

[@waelfadlallah8939]

​@@Karlski420to let you know that she was an excellent student 😅

[@ianrodgers6190]

@@Karlski420 Because I subscribed to his channel about several months ago, and I loved it for so long that I decided to post that comment down below this video.

[@matthewjackson337]

what types of volcanoes are most common around the pacific ring of fire??

[@inappropriatejohnson]

Thanks again, Dave.

[@z2kk]

Love this video format. MOAR (please)

[@ХристинаБоровець-ф6с]

Thank you for detailed information of volcanoes.

[@bushrasharafuddheen9836]

Professor dave is amazing ❤❤

[@arkansasoutpost]

I've been boondocking for a few years, living in a bus and camping mostly on federal land out west. There's lots of volcanic geology to see out here. In northeastern New Mexico, there's a small cinder cone with a small shield volcano not far away. West of Alamosa in Colorado's San Luis Valley, there are the remains of old pyroclastic flows. There are lava flows several places in New Mexico. It's fun to look at such landscapes, but it's even more fun if you understand a little bit about how they came to be.

[@Mortgageman145]

When are going to get video on Matt Powell??? Anyway, amazing work as usual

[@PradeepBagde-s3earth]

Nice information about volcanism.

[@AGomez-m2u]

this helped ALOT

[@tiffanynajberg5177]

Is no one going to talk about how cute the little cinder cones are? They are like a toy volcano except good n fiery!

[@AshwaniKumar-tx3cq]

Please continue the geology series

[@dominiclester3232]

What a great video, thank you! I might have become a volcanologist if I’d seen this video as a teenager...

[@tiffanynajberg5177]

I wonder what the flat earther explanation for volcanoes is…

[@mjjoe76]

If you ask one, you’ll probably get a red herring screed about NASA or Free Masons.

[@DarkPlaysThings]

God. Like much of their "logic"

[@tiffanynajberg5177]

@@DarkPlaysThingspossibly they could climb down into the volcanoes to verify that. Like a challenge.

[@DarkPlaysThings]

@@tiffanynajberg5177 I like your thinking

[@tiffanynajberg5177]

TY😁

[@jamiegallier2106]

Another informative, well presented and detailed video. Thanks Dave!

[@419exorcist9]

Hey Dave if you do more volcano stuff, I have some really fantastic eruption video from when I was in Guatemala! Including some drone video

[@TheVynka]

Hello Dave, I have recently passed the last stage of treatment for a Lymphoma (NHL,) which consists on an autologous transplant of hematopoietic progenitors. Would love to see you going over how this treatment works. Cheers

[@nebulan]

🌋 Visited Snake River, ID this year and got to see some old yellowstone igneous formations

[@WestCooly]

Gotta love humans and our languages, someone stepped where they shouldn't and "a'a!"

[@LeV01D]

Pretty apropos for what's happening in Iceland right now.

[@therealryzen1]

Very cool

[@chriscasperson5927]

Professor Dave puts out a video on volcanoes and 19 hours later Mount Etna erupts. Coincidence? I think not.

[@Masu_Stargazer]

I hate to contradict, but the statement "volcanoes are present on every continent" is technically correct as there are remanets of extinct volcanoes in Australia, but there are NO ACTIVE volcanoes on the Australian mainland, particularly where the “global map of volcanoes” show one somewhere between Adelaide and Melbourne. Having traveled fairly extensively through that region I can categorically state that “there is no active volcano there”. If fact the area is known for its extensive limestone cave networks that have been formed over millennia by water dissolving the limestone and forming numerous spectacular formations, but definitely NO ACTIVE VOLCANO.

[@rheiagreenland4714]

If you include Oceania as a continent instead of just Australia though, there are definitely tons of volcanoes, like on New Zealand. 🤓

[@The_Horse-leafs_Cabbage]

This kinda makes me wonder-- Why was the Hunga Tonga 2022 eruption so explosively powerful?

[@PalladiumTV]

Its happening now in Iceland. Which is in the mid Alantic ridge.

[@rheiagreenland4714]

I think that Iceland is something of an exception where an unusually large hotspot has happened to lie directly underneath the divergent plate boundary. It's similar to the Azores which is also above a mantle hotspot which, in its case, lies over the triple junction between the African, Eurasian, and North American plates. I think there are also a lot of interesting underwater plateaus which were formed in a similar way before now, and have since been split by the divergent plates, mostly if not entirely submerged underwater.

[@WhdibAoqj]

Good very good ❤

[@mjjoe76]

Person driving the truck at 7:42 is probably swearing profusely with the gas pedal glued to the floor.

[@ABC-or6fg]

Wonderful 😊

[@waelfadlallah8939]

What happened to the applied chemistry sessions?

[@rheiagreenland4714]

Hey Dave, I don't know if you take any suggestions, but if you do, since we're on the topics of volcanoes and you like to debunk some pseudoscience-related topics, I think some kind of look at the hysteria surrounding the Yellowstone "supervolcano" would be an interesting one. I have a lot of personal experience with this one as I had a severe bout of anxiety when I was younger, being very interested in science and learning about things like Yellowstone and black holes and gamma rays and such scary-seeming things - and I think that I kinda stopped being as interested in learning about these kinds of things for a fair while because it was just so anxiety-inducing, and I'm looking back on that regrettably now that I've been interested again. I know that living with that kind of fear can be crippling and bad for your sanity. I think that having something to be able to debunk / address a lot of the things that cause hysteria and public panic, be they specific claims by some clickbait video or just the general public notion that Yellowstone is "overdue to blow." It also really frustrates me because I absolutely love the geology of Yellowstone but it's next to impossible to get any actually good resources on it without also being bombarded by fearmongering about it. If my experience is anything to go on, this kind of panic without knowing much about it can be quite harmful and damaging to both public discourse about both the geologic wonder of Yellowstone as well as volcanoes in general, and mental health. If you take it up, maybe you could also cover some of the ways in which scientists study and keep such a close watch on Yellowstone, which would both be enlightening for how to specifically deal with claims about Yellowstone, as well as about how real scientific observation is done as we speak. I know for one thing it's really grounding to know about how science is done, what it can do and its limitations, and it helps to break the perception of Science as being some kind of magic, and learning how these things work can help to understand how scientists think and find things out, rather than relying on notions of 'green chemical go pour in red chemical in beaker = science' or, god forbid, falling into the "Science is DOGMA" narrative. And it would seem that it's a lot easier to dismiss pseudoscience and lies about science when you have some examples like that.

[@BeautifulRhodeIsland]

Living around volcano's is crazy, but that soil though.

[@user-santoah8877]

Wow so good explan

[@marysuegromek5609]

Thank u Dave Can u please different types of volcanoes in Cascadia region which included Mt.Hood and Mt. Rainier???

[@Dankdalorde]

Hello Dave - I’ve been trying to sort out the whole Palestine-Israel conflict. Can you make a video on it?

[@Dcoooooooookkkkooo1]

Hello

[@donchristie420]

Yellowstone: hold my beer

[@AGomez-m2u]

i watch this at school

[@Unknown-07-r6d]

Sir what is the potential energy at the centre of the Earth?

[@chipbowers247]

Any flerfs tried to tackle plate tectonics?

[@donmcdouglas5017]

suspicious observer's favorite video

[@mikesparrow3807]

Way to go Dave - another very educational & informative piece - even for us “older” folks!

[@noobmario7063]

I love you science jesus❤

[@mikhailquashie9899]

14:09 is that La Soufriere eruption in St. Vincent that happened in 2021?

[@ArlecchinoMyDarlingChief17]

VOLCANOES!!! (just one question: Is Yellowstone going off like a Tsar Bomba nuke in the movie "2012" LEGITLY possible?)

[@SevenPr1me]

It actually isn't

[@ArlecchinoMyDarlingChief17]

@@SevenPr1me assuming it erupts, how strong it'll be?

[@AGomez-m2u]

w vid

[@DouglasJenkins]

This certanily is a "hot" topic!

[@briankane6547]

That STRANGE continent again? Annarticka?

[@419exorcist9]

Wut 🤣

[@mjallen1308]

Puh-hoy-hoy 👋👋 and ah ah 😝😝

[@Sageoutcastpodcast]

AHAHAHAHAHAHAH Blocked

[@DarkPlaysThings]

I don't think he cares pal

[@Sageoutcastpodcast]

@@DarkPlaysThings oh he cares or he would not of blocked me

[@Skeptical_Numbat]

Thanks @ProfessorDave. The sciences of Plate Tectonics & Vulcanology are both awe-inspiring, mesmerising & terrifying. ~ ⦿ ~ That people casually live close to active Volcanos blows my mind. I get that they're mostly like Mauna Loa, making them pretty unlikely to suddenly detonate like a nuclear bomb, but - with problems like toxic gas, rivers of boiling water/mud & the ever present sharp-edged volcanic ash particles shredding your lungs - it still seems extraordinarily dangerous...

[@davidaugustofc2574]

Knowledge about volcanoes was scarce because most people living around them didn't survive major events. Now we know, but we can't just move large civilizations

[@AGomez-m2u]

w vid