Note: I am making a correction. I showed the wrong harmonic tremor dataset for Raung. In reality, that was the dataset for Rinjani. Thus, you can ignore that small segment of the video. Original comment: I had kept Raung hovering between my "minor unrest" and "moderate unrest" groupings for some time due to activity which I deemed unusual. Thus, I am sort of glad that it erupted, as it confirmed my observations. While its latest eruption is not likely to be destructive, you should NOT hike to or around the crater rim of Raung at this time.
Hey you should look into "SEO Score"(search engine optimization). It will help you grow a lot faster (even though your channel is exploding). I'm showing this video is 65/100. Just some friendly advise from one youtuber to another.
Good advice, not to hike there right now, but so many of the volcanoes are on yellow alert level and some yellow continuously for years, so of course people start hiking again.
This channel is a window looking out upon our still-percolating planet. No hyperbole, no shouting, just great visuals and information. The Pecos Hank of geology.
Prayers for you and your people, Iskandar. Do pack your bags and be ready to run very quickly. I watched many of the lahar videos from Semeru (just 120km from Raung), by Bang iOne, and they are heartbreaking and terrifying.
I’ve been watching your videos for a while now and there by far the best I’ve seen on geologic topics. You have information that I can’t find anywhere else. For that reason would you be able to look into the wakulla volcano. Or why people thought there was a volcano was in Florida. Thanks for the amazing content and can’t wait to see what’s next.
@@ettie4222 Most people only know the famous one which is the one in the border of Central Java and Yogyakarta, but there is another one named Merapi in East Java which actually appeared in this video.
I just visited Kawa Ijen in June. On the hike back down we had a beautiful view of Raung in the distance. The guide said now wasn’t a good time to hike on Raung. Now I know why.
The lava is not blue, the sulfur rich gases burn with a blue hue, the yellow/orange glow of the lava is still visible and often times is much brighter than the burning blue gases.
Hi Indonesia, Washington stater who lives 350 miles from Mt St Helens and felt the bulk of the ash fallout as it was blown away from the site by the massive belch initially. The ash storm lasted days and was quite surreal as we all knew what happened then watched it approach biblically as hell. Mother nature has some serious muscle so be ready..
There's a video out there about the volcano. IIRC, the blue color is due to an extremely high sulphur content, which burns with a blue flame, so the red hot lava covered with blue flame looks blue. I may not have the details right - it's been a while since I watched the video.
Apparently, it's a sulfur fire, due to lava heating, that yields electric-blue flames that flow and give the appearance of melted rock (lava). However, it's stated that real blue lava is possible, but would require extremely high temperatures only found at the Sun's surface and maybe the Earth's Core.
Dates of past eruptions can be determined in many ways. Some of the most common are: - Stratigraphy (where a layer from a particular eruption lies relative to other geological layers) is probably the most common method. Eruptions are often dated relative to each other in this way; for example, we know Mount Bachelor in Oregon probably hasn't erupted since before the Mount Mazama eruption that formed Crater Lake, because Bachelor is covered by an ash layer from the Crater Lake eruption. - Dating radioisotopes in samples of eruption material, such as carbon-14 or argon-40. Which isotopes are used depends on the age and type of material in the samples. - Eruption dating can also be informed by anthropology and archaeology, such as historic records, native stories, or human ruins relative to volcanic layers, like Pompeii or Akrotiri.
My dude you cant just say "blue lava" like that and not show anything about it. Although I know your subject was Raung so I understand. Seriously though you are one of the best geologic youtube channels around!
@@Eruthian no way! I will be checking that out very soon! He really ought to reference his own videos in the future. However the fact that he didn’t is also kind of refreshing. Thank you internet stranger!
@@mikelevels1 How YT works theese days, I recommend to always check the complete channel of a CC u like. Recommendations don`t really work anymore. He has a topic "Volcanoes of the world" and the blue lava volcanoe is actually the first clip I think ;)
I haven't been watching hing you channel for very long, but my question to you would be are all these volcanos erupting normal and will they have any effect on climate?
Hey, can you take a look at the Abra River Fault and the magnitude 7.0 earthquake originated there last July 27, 2022? Know any indications that it was due for an earthquake?
Hi geology hub i really love your videos there really interesting about volcanoes. btw i heard of this volcano in south america called Vilama would you mind making a video on that volcano?
While you are covering Indonesia, I would be interested to hear what you make of Gamalama, a volcano that basically makes up the whole of the Island of Ternate, in the Maluku province, an area known to Europeans as "The Spice Islands". I have held a desire to visit there for nearly thirty years since I learned of its rich history of European, Islamic, Hindu and probably Chinese traders/explorers, but there have been a few new eruptions there since I formed that desire.
@@flamencoprof it is another island. Back in time cloves only found at Banda Islands and Run Island. Banda it self were remnants of ancient volcano that collapse into a crater, not only one but twice.
Multiple stratovolcanoes forming along a caldera ring fracture is super bad-ass. Any idea on the volume of material ejected during that caldera-forming eruption (~50kya, was it?)?
@GeologyHub You might want to check Iceland out as there is intensifying EQ swarm in six to eight hours ago by Fagradalsfjall, as it started at 8km deep and is now at 2-5km deep with numerous M1.0+s, 2.0+s, 3.0+s and even one 4.0. Might be worth checking out.
Sorry to nitpick but Ijen doesn't erupt blue lava. It "erupts" molten sulfur from its fumaroles, said molten burning sulfur produces a blue glow in low light.
In Indonesian, to pronounce Raung is not like "Re-yang", it should pronounce like "Ra-Unk". Ra is just Ra, not Re. And Unk or Ung is just Unk, not Ang. Indonesian word is just like Spanish. It pronounce as same as what it type. Raung means Roar in Indonesian.
4832m or 15,853'. Hmm. Don't you think this is a silly level of precision? Clouds being rather nebulous things can hardly be measured to within such a degree. Drop a couple orders of magnitude next time. LOL. That aside, thanks for the interesting updates you give.
Y'all did good. Your narrator sounds like the perfect geology professor: dull, monotone and entirely uninspiring. I'm not even 20 seconds into the video and already my eyelids are getting heavy. I'm just waiting for the "Bueller... Bueller..."
If there's one thing we can be sure of with volcanism, is that its terribly unpredictable. Even that science is able to monitor active area's closely and come with evacuation-procedures that could prevent a lót of human casualties...the actual intensity and vastness of an eruption is as good as impossible to determine upfront. Take the Hunga-Tonga eruption as the last 'fine example' of Mother Earth's infathomable power: After studying this eruption, it was classed as a VEI-6: exceeding 10 cubic kilometers of fallout! ..thats 3x as much as the famous Vesuvius Eruption of 79AD, and 10x as much as St Helens in 1980! VEI-6 eruptions are pretty rare to occur! The last time a VEi-6 occured was 1991 when Punatubo 'manifested' itself over the course of several weeks with intimidatingly lárge pyroclastic flows that quickly turned into 'lahars': enormous mud+ash streams that tore apart entire villages in mere moments! Before that it was the Krakatoa's famous explosion of 1883, where it literally blew its entire peak off and became a sub-nautical volcano: this was one of the most powerful eruptions in the last 300 years, its only overshadowed by the VEI-7 of 1815's Tambora, who took several MONTHS of unprecedented devastation to cause 150 cubic kilometers of fallout and an explosion that left a 6km wide and 1km deep crater, in the wake of its once 1500-meter hígher summit!... The frigthening comparison with Hunga Tonga is that all the other VEI-6 or higher eruption occured over a pretty lóng timespan of intense activity! Hunga-Tonga produced a VEI 6 in merely TEN minutes.... O.o
@@SpaceLover-he9fj In these years, how much pollution did the atmosphere receive from volcanoes? Orders of magnitude more than humanity in years. The weather changes not only because of people and nature. If we look at the ancient history, droughts, drying up of rivers that lasted for years happened many times. Documents from Sumerian and Egyptian times prove it. Then came the extreme cold periods. It is therefore cyclical, influenced by the movement of the sun and the earth - humanity is powerless against them. The green religion has no real effect on it - at most it delays it a little, it cannot be measured in years - unfortunately. Only the development of science and technology can save humanity for a while.
Note: I am making a correction. I showed the wrong harmonic tremor dataset for Raung. In reality, that was the dataset for Rinjani. Thus, you can ignore that small segment of the video.
Original comment: I had kept Raung hovering between my "minor unrest" and "moderate unrest" groupings for some time due to activity which I deemed unusual. Thus, I am sort of glad that it erupted, as it confirmed my observations. While its latest eruption is not likely to be destructive, you should NOT hike to or around the crater rim of Raung at this time.
Hey you should look into "SEO Score"(search engine optimization). It will help you grow a lot faster (even though your channel is exploding). I'm showing this video is 65/100. Just some friendly advise from one youtuber to another.
Does it come with free steak knives?
Good advice, not to hike there right now, but so many of the volcanoes are on yellow alert level and some yellow continuously for years, so of course people start hiking again.
You are an amazing geologist/volcanologist
I noticed a picture of halemaumau crater( Kilauea ) hmmm?
This channel is a window looking out upon our still-percolating planet. No hyperbole, no shouting, just great visuals and information. The Pecos Hank of geology.
I wonder if there is a shouty geologist
A "reed timmer" of geology if you will
@@owenjackson2390 there might be, but I cannot immediately think of one.
I am glad that you appreciate my content. I try to keep it plain and simple.
Hey, you watch Pecos Hank too? I guess we're drawn to the same videos :D
I love that Hank Pecos is a household name now.
this guy is one of my favorite people I'm subbed too. short and informative.. love it
So true !
Same, i remember supporting him even before 20k subs
Me too!
Furthermore, he is not afraid of admitting an error and correcting it. Appreciate his honesty!
@@renater.540 100%.
Honesty is always the best policy but unfortunately many creators don't agree.
I live 20 km south of the crater summit and am in one of the potential lahar paths. Hopefully nothing will happen in this eruption.
Evacuate to safer ground just to be on the safe side.
@@bloodrave9578 lol. probably good advice to relocate to Monaco where there is no lahars 🙄
Prayers for you and your people, Iskandar. Do pack your bags and be ready to run very quickly. I watched many of the lahar videos from Semeru (just 120km from Raung), by Bang iOne, and they are heartbreaking and terrifying.
I’ve been watching your videos for a while now and there by far the best I’ve seen on geologic topics. You have information that I can’t find anywhere else. For that reason would you be able to look into the wakulla volcano. Or why people thought there was a volcano was in Florida. Thanks for the amazing content and can’t wait to see what’s next.
Raung not to be confused with Ruang which also has been misbehaving.
Confusing! Raung is on Java and Ruang is in the Sangihe islands arc, both Indonesia. It would be very easy to get the names muddled.
Also Merapi which is in Java vs Marapi which is in Sumatra. To add to the confusion, there are 2 that are named Merapi and both are in Java.
in Java there is only one Merapi
@@ettie4222 Most people only know the famous one which is the one in the border of Central Java and Yogyakarta, but there is another one named Merapi in East Java which actually appeared in this video.
Sorry, there's only one Merapi... I live in Sleman, Yogyakarta
I just visited Kawa Ijen in June. On the hike back down we had a beautiful view of Raung in the distance. The guide said now wasn’t a good time to hike on Raung. Now I know why.
Raung is one of the hardest volcano to climb in Java.
2022-07-29 04:57:44 (UTC-07:00) approximately 140km east of this very volcano at a recorded depth of 10km, a M4.5 earthquake occurred
Wow, blue lava is so unusual I mean just think about it when the rest is red, 🥰😍🧐I know it's the chemical composition but still sooo cool 😎
Thank you so much for the information. Will keep an eye open there should be more activities with volcanic eruptions these next few weeks
Blue lava?!?! Can we have more info on that please?
Put blue lava into search bar here at utube and you get hits.
He has a video on that volcano
@@elaineflohr9145 I did that, but only found that that volcano emits blue flames. Mr. GeologyHub is the expert so I thought I'd ask him.
@@Garmin21111 My bad. I searched on the name of the volcano in Google but not on this channel. Doh!
The lava is not blue, the sulfur rich gases burn with a blue hue, the yellow/orange glow of the lava is still visible and often times is much brighter than the burning blue gases.
Hi Indonesia, Washington stater who lives 350 miles from Mt St Helens and felt the bulk of the ash fallout as it was blown away from the site by the massive belch initially. The ash storm lasted days and was quite surreal as we all knew what happened then watched it approach biblically as hell. Mother nature has some serious muscle so be ready..
Great explanation about this activity in context pf it’s historical activity and likely furure behavior.
Blue lava?! That sounds amazing! Are there any other colors of lava?
Yes it can be redish, or grey or black etc
There's a video out there about the volcano. IIRC, the blue color is due to an extremely high sulphur content, which burns with a blue flame, so the red hot lava covered with blue flame looks blue. I may not have the details right - it's been a while since I watched the video.
There is black lava from tanzania
Apparently, it's a sulfur fire, due to lava heating, that yields electric-blue flames that flow and give the appearance of melted rock (lava). However, it's stated that real blue lava is possible, but would require extremely high temperatures only found at the Sun's surface and maybe the Earth's Core.
More pheatic eruptions does Raise the alert level?
Not unless you add a lot more water.
Please explain how past volcano eruption dates are determined
Dates of past eruptions can be determined in many ways. Some of the most common are:
- Stratigraphy (where a layer from a particular eruption lies relative to other geological layers) is probably the most common method. Eruptions are often dated relative to each other in this way; for example, we know Mount Bachelor in Oregon probably hasn't erupted since before the Mount Mazama eruption that formed Crater Lake, because Bachelor is covered by an ash layer from the Crater Lake eruption.
- Dating radioisotopes in samples of eruption material, such as carbon-14 or argon-40. Which isotopes are used depends on the age and type of material in the samples.
- Eruption dating can also be informed by anthropology and archaeology, such as historic records, native stories, or human ruins relative to volcanic layers, like Pompeii or Akrotiri.
My dude you cant just say "blue lava" like that and not show anything about it. Although I know your subject was Raung so I understand. Seriously though you are one of the best geologic youtube channels around!
He already has a dedicated video about that volcanoe.
@@Eruthian no way! I will be checking that out very soon! He really ought to reference his own videos in the future. However the fact that he didn’t is also kind of refreshing. Thank you internet stranger!
@@mikelevels1 How YT works theese days, I recommend to always check the complete channel of a CC u like. Recommendations don`t really work anymore. He has a topic "Volcanoes of the world" and the blue lava volcanoe is actually the first clip I think ;)
Are you feeling well?
Hugs.
I haven't been watching hing you channel for very long, but my question to you would be are all these volcanos erupting normal and will they have any effect on climate?
It's all typical for our planet. And human caused emissions are larger than the background volcanic emissions.
To really change the climate you need a high end VEI 6 and above eruption. Even a eruption like hunga tongo and mt St Helen's wouldn't be big enough.
Could we get an update on the volcano on the Island in Italy that covered a part of the towns??? Thank you,
Hey, can you take a look at the Abra River Fault and the magnitude 7.0 earthquake originated there last July 27, 2022? Know any indications that it was due for an earthquake?
I wonder what the pressure readings are for these phreatic explosions.
Hi geology hub i really love your videos there really interesting about volcanoes. btw i heard of this volcano in south america called Vilama would you mind making a video on that volcano?
How likely is it that Kīlauea volcano fills its caldera and overflows? It's had 10 straight months of caldera lift.
While you are covering Indonesia, I would be interested to hear what you make of Gamalama, a volcano that basically makes up the whole of the Island of Ternate, in the Maluku province, an area known to Europeans as "The Spice Islands". I have held a desire to visit there for nearly thirty years since I learned of its rich history of European, Islamic, Hindu and probably Chinese traders/explorers, but there have been a few new eruptions there since I formed that desire.
Banda Neira
@@fadlkarmula8776 I have heard of Ambon before, but not this. Looks like yet another volcanic island.
@@flamencoprof it is another island. Back in time cloves only found at Banda Islands and Run Island. Banda it self were remnants of ancient volcano that collapse into a crater, not only one but twice.
Thank you 🙏
Raung is probably one of my favorite volcanoes.
Multiple stratovolcanoes forming along a caldera ring fracture is super bad-ass.
Any idea on the volume of material ejected during that caldera-forming eruption (~50kya, was it?)?
@GeologyHub You might want to check Iceland out as there is intensifying EQ swarm in six to eight hours ago by Fagradalsfjall, as it started at 8km deep and is now at 2-5km deep with numerous M1.0+s, 2.0+s, 3.0+s and even one 4.0.
Might be worth checking out.
What spectrum of light do satellites use to detect sulferdioxide?
Wait, What? Blue Lava?
Can someone explain?
Blue lava from Ijen Volcano to the east
For future videos it would be helpful to give the city, state, province, and or country's location when mentioning volcano. Thank you.
Make one about the ancient Ko'olau (koh-oh-lau) shield volcano
I like all your videos, but I most like the thrill of an update :)
Sorry to nitpick but Ijen doesn't erupt blue lava. It "erupts" molten sulfur from its fumaroles, said molten burning sulfur produces a blue glow in low light.
In Indonesian, to pronounce Raung is not like "Re-yang", it should pronounce like "Ra-Unk". Ra is just Ra, not Re. And Unk or Ung is just Unk, not Ang. Indonesian word is just like Spanish. It pronounce as same as what it type. Raung means Roar in Indonesian.
Lately, there seems to be a lot of volcanic activity worldwide.
Typical day on planet Earth. You live on a volcanic planet.
Volcanoes erupt all the time. It’s just rare that it happens near human settlement.
Yes. In a way, our planet is “alive”.
2:36 Ijen erupts blue lava?
thank you for update.
Stary
I like your basic drawings. Do you do them yourself or does someone do them for you?
Sakurajima, Raung and now fagra Iceland.
Are we going to see an uptick again?
4832m or 15,853'. Hmm. Don't you think this is a silly level of precision? Clouds being rather nebulous things can hardly be measured to within such a degree. Drop a couple orders of magnitude next time. LOL. That aside, thanks for the interesting updates you give.
They originally uploaded footage of Mt. St. Helens, but took it down because it was the Raung Volcano.
👍
!! 😉 ( 🇮🇩 Indonesia )
How many volcanos are active right now ???
You said you wanted hot water for your tea.
It's got a kick.
Y'all did good. Your narrator sounds like the perfect geology professor: dull, monotone and entirely uninspiring. I'm not even 20 seconds into the video and already my eyelids are getting heavy.
I'm just waiting for the "Bueller... Bueller..."
I hope Mt. Ijen never errupt.
My home only 50km from the caldera🤣
Wait...blue lava?
WE COMMISSIONS THAT
STÆRT PLÆNTÎNGS PLÆNTÏNGS THÆNKS
If there's one thing we can be sure of with volcanism, is that its terribly unpredictable. Even that science is able to monitor active area's closely and come with evacuation-procedures that could prevent a lót of human casualties...the actual intensity and vastness of an eruption is as good as impossible to determine upfront.
Take the Hunga-Tonga eruption as the last 'fine example' of Mother Earth's infathomable power: After studying this eruption, it was classed as a VEI-6: exceeding 10 cubic kilometers of fallout!
..thats 3x as much as the famous Vesuvius Eruption of 79AD, and 10x as much as St Helens in 1980! VEI-6 eruptions are pretty rare to occur!
The last time a VEi-6 occured was 1991 when Punatubo 'manifested' itself over the course of several weeks with intimidatingly lárge pyroclastic flows that quickly turned into 'lahars': enormous mud+ash streams that tore apart entire villages in mere moments!
Before that it was the Krakatoa's famous explosion of 1883, where it literally blew its entire peak off and became a sub-nautical volcano: this was one of the most powerful eruptions in the last 300 years, its only overshadowed by the VEI-7 of 1815's Tambora, who took several MONTHS of unprecedented devastation to cause 150 cubic kilometers of fallout and an explosion that left a 6km wide and 1km deep crater, in the wake of its once 1500-meter hígher summit!...
The frigthening comparison with Hunga Tonga is that all the other VEI-6 or higher eruption occured over a pretty lóng timespan of intense activity!
Hunga-Tonga produced a VEI 6 in merely TEN minutes....
O.o
We are so sick of the SI to imperial units
👍👍👍
What is the US going to do to prevent these volcanoes from impacting the global climate? Should EV (Electric Volcanoes) be mandated?
You just need an excuse to do nothing at all
@@Karincl7 Exactly. We must all work against volcanies.
Volcanoes are important for us. They keep the atmosphere warm, produce land and produce fertile soil.
@@SpaceLover-he9fj We must stop volcanoes from impact global climate
💚💚🙏
This one has me worried as this would blow like the last one!
All these volcanoes waking up lately... Making me wonder if they're planning a big party when they're all fully awake. 🥺
The world better start planting trees to help cool the planet. Would help with air quality.
What's next Yosemite lol
Raung (Roar in English)
raung is roar in bahasa
Much boom boom. Hot, red and smokey, the way I like it.
Let me see, how many Indonesian peoples concern about this
Ole Mah EARTH never stop’s building/renewing ! Heck ole Joe is already a fossil along with lots o’vis BUDDS and buddets!
Anyone got a teabag?! 🇬🇧
This has to be narrated by a computer. So weird.
That’s his natural voice. You should feel immense pity towards him because he tried to get the voice changed but with no success. :(
Gretà thunder better explain this. So much for climate change. Leave it to mother nature.
Better carbon tax that volcano.
oh god its the upward inflection guy. i need to click the don't recommend button
Get the hell out
Strombolian isn't a real word, you made that up.
Educate kid
People are already so green that they ride bicycles instead of cars. This garbage mountain pollutes more than an entire city.
There are still many people who are not green...
@@SpaceLover-he9fj In these years, how much pollution did the atmosphere receive from volcanoes? Orders of magnitude more than humanity in years. The weather changes not only because of people and nature. If we look at the ancient history, droughts, drying up of rivers that lasted for years happened many times. Documents from Sumerian and Egyptian times prove it. Then came the extreme cold periods. It is therefore cyclical, influenced by the movement of the sun and the earth - humanity is powerless against them. The green religion has no real effect on it - at most it delays it a little, it cannot be measured in years - unfortunately. Only the development of science and technology can save humanity for a while.
No video of the actual eruption?