The Recent Megaeruption in California; The Rockland Caldera
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- Опубликовано: 1 авг 2024
- The Lassen Peak volcano in California produced one of the largest volcanic eruptions in the entire Cascade Mountain range of the last 1 million years. This eruption covered nearby areas in as much as 250 feet or 76 meters of ash in a timespan of less than 24 hours. Despite the size of the eruption, its occurrence has been largely hidden by subsequent volcanic activity. So, how long ago did this eruption occur? Why is this apparent volcano no longer visible? This video will answer these two questions and discuss this caldera forming eruption.
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Graphics of eruption dates are courtesy of the Global Volcanism Program, Smithsonian Institute. volcano.si.edu/
0:00 Lassen Peak Erupts
0:33 An Older Megaeruption
1:02 Extent of the Eruption
1:47 Why the Eruption Happened
2:40 Eruption Sequence
3:34 Location of Caldera
Google Earth imagery used in this video: ©Google & Data Providers
Thumbnail Photo Credit: ELG21, Pixabay, Pixabay License
Note: This video is protected under "fair use". If you see an image or video which is your own, or think referencing a scientific paper does not fall under this doctrine, contact me by email at geologyhubyt@gmail.com and I will remove / censor the content in question.
Apart from Mount Saint Helens and the Mono-Inyo volcanic chain, Lassen Peak is one of the most likely volcanoes in the lower 48 US states to produce a VEI 4+ eruption. Although a repeat of its Rockland Caldera forming eruption is highly unlikely, eruptions larger than what occurred in 1914-17 are likely in the future.
Also, you might note by choice of words. California did produce a larger eruption outside of the Cascade Mountain Range at the Long Valley Supervolcano in the last 1 million years.
@@princessofthecape2078 I have! Link: m.ruclips.net/video/Rmfi2JaThSE/видео.html
Where there any ancient or extinct supervolcanoes in Greece?
Thanks for making a video about my favorite volcano, the one where a random tiny geothermal vent burned my foot, my dad almost fainted from sulfur dioxide fumes, and my boyfriend who went there to make a video about it because I told him it was cool pitched a tent that got blown off the cliffside by random high winds, showing a map of ash from a previous eruption covering where I currently live. That's awesome, you made my bad day better.
Glacier Peak has bigger eruptions than Mount Saint Helens and Lassen Peak.
Got to climb Lassen a few times, in training to climb Shasta. Trippy feeling up there knowing one day that the peak I’m standing on will be blown away one day!
sometimes i forget “recent” means something entirely different in geology.... i thought this exploded yesterday or somthing lol
People seem to overlook California when talking about volcanism, so I appreciate this video a lot!
If anybody is ever up in that area, Lassen national park is amazing and well worth the trip. Gorgeous landscape
I live in the area it’s such a beautiful place to live
I lived in humbolt for a littlewwhile an never made it there but i did live in six rivers natinal forrest near Mount Lassic "not to be confused with Lassen" Wilderness I could see Lassen and shasta and trinity alps from the tops of some fof the peaks there.
The picture shown at 6 seconds in of the Lassen mushroom cloud is actually a composite of two photos. This image is/was sold as a postcard all over Northern California and on the postcard the poor collage technique was clearly visible. As a little kid, that image taught me the importance of knife angle in creating collage art.
My grandfather was born in 1905. He remembers when Lassen erupted and told us his story when we were kids. When Mount St. Helens erupted our home had a large amount of ash falling in the Sacramento area. My grandfather also witnessed that eruption too. Love this channel thanks for the hard work
For a while I lived somewhat between Shasta and Lassen, went to both, Lassen is my fave to visit and Shasta is my fave to look at ✨
Greetings from Germany! Very good post. In fact, I was already in elementary school in a volcanism study group (voluntarily). I had previously seen the Heimaey/Island volcanic eruption on the TV news. Then something completely different became of me, but the topic never let go of me.
Great stuff man I remember when you only had 6k subscribers, now almost 150k ! Great stuff keep it up 👍🏻
Thanks for staying with me from the very beginnings of my channel :)
Me too 🥰 or even less than that
@@GeologyHub You gotta do a 100k celebration video, or maybe a 150k one if you wanna wait a little more. The last questions and answers video was very nice and I'd love to hear more geology related stories from you.
That first picture!!
I'd love to see a video of Mount Mazama AKA Crater Lake
Thanks for such interesting vlogs. You tell it as it is and was without trying to sensationalize. Keep up the good work.
Yeah that's why I was hooked right from the first video I watched. I've been looking for this kind of channel for years, let's just hope it doesn't change too much with time as this gains more and more popularity. The popularity is most definitely well-earned.
If only the news was reported like this. Used to be, ages ago. Now it's all slick, sensationalist and yellow journalism. @GeologyHub's presentation is unassailable -- simple facts. Take it or leave it.
Wow. As a kid I remember the Saint Helen's eruption sending ash into Colorado. Ash settled in Boulder and was producing streams of ash blowing over and around the continental divide that would glow with the sun set. I can only imagine what the Lassen eruption did.
The more you know, the more you don't. I happened upon a rudimentary discussion of the volcanism surrounding Lassen Peak but was never told of the caldera that formed there. Long Valley and Rockland Calderas obviously have no connection, but it's apparent that this 100,000-year-or-so geologic period in the Cascades and Sierra Nevada made it a happenin' place for quite some time. And by geologic standards those two mega-eruptions took place relatively "recently."
Speaks volumes to how quickly things can change. Ty👍👍
I was there some years ago. It was still very merrily bubbling and steaming away. It's an extremely interesting landscape.
Wow, these old photos are a great find. In 1915 it's not like they could take a quick shot and run away. When the mountain in front of you is exploding it's time to pack the tripod, crank-start the Model T and speed off in at 20 mph on an unpaved road.
Cool. I live in Redding, and spend each morning on my porch watching the sun rise over Lassen peak. My own personal volcano!
I was there last July and climb to the top of Lassen peak with my best friend. It has become one of my favorite sacred places in nature.
I would like to request that you make a documentary. I really enjoy the way you explain things very clearly. Even complicated terms are very captivating and understandable!
Needless to say I would definitely watch a whole documentary of you explaining some volcano history!
Please may you do the Super eruption of the La Pacana Caldera, in Chile.
Thank you for your bite size information chunks. I think this is an amazing site.
Where have you been all my RUclips life ✨
The Lassen area has a special place in my heart because it was the first active volcano I ever visited. I remember learning about the Brokeoff Volcano that used to dominate the area, but I had never heard of the Rockland caldera before now! Thanks for the video!
Lassen Peak reminds me of the Okataina caldera and Tarawera volcano
It seems that large volcanic calderas often have such bizarre volcanic formations like constantly active and large lava domes and small to medium size stratovolcanoes built on top of the crater.
Also the pre long valley area looked and acted like the Mono/Inyo system until it blew
What a grate video. I appropriate these videos everyday. I'm glad to see you viewer base is growing I have been sharing your videos every single day.
Wonderful! I really enjoy this channel; I’m fascinated by all the detail & learning more every day. Thank you 👍
Top level channel, in my books. One of the rare channels I wish had longer run-times on their videos.
On the drive to Lassen Peak you drive through a vast landscape covered with boulders, a.k.a. lava bombs. These are from Mt. Tehama's lahar, or so the say. You can also see cliffs of ash and lava. I live on the east coast, so this landscape was fascinating to me. The Jumbles at Chaos Crags really gave me the impression of how huge Mt. Lassen's eruption in the early 1900's was.
I climbed Lasson peak in my teens, quite impressive!
Wow! That was really interesting and informative. Thank you.
Highway 36, from Eureka to Redding runs through the Yolo Bolly (sp?) badlands - miles of volcanic rubble created when Mt. Tehama blew. Interesting trip, once.
keep the good updates going this is very cool
The fact that Mt. St.Helens is mentioned so often in this channel gives me a great feeling of nostalgia. When I was a kid (during the mid 2000s), my parents built a small library in my house. One of my favorite books to read was about the 1980 eruption of Mt. St. Helens and the years afterwards. It was such an interesting book, because it showed Mt. St. Helens before the eruption and how peaceful the landscape was. Then you see pictures during the aftermath, and places like Spirit Lake have been incinerated, totally void of life. Could you imagine if a volcano like Mt. Shasta, Three Sisters or Mt. Rainier did that? It’s crazy to think that violent eruptions have taken place in the past, but so much magma hasn’t risen to the surface, how a volcano like St. Helens blew its top off, and what we can expect moving into the future.
Tha explosiveness of the Cascade volcanos are do to the high silica type of magma they produce. At Mt
Rainer the magma is so thick that it never has left it's National park
Great video! Lots of awesome and interesting information!
Once again, great job! 👍
Bless Ur Heart for proving a place children and adults can learn how life begins with molten voltage Bioplasma
I’ve been told Hahn’s Peak near Steamboat Springs CO is an extinct volcano. Would potentially make a cool video
Only subbed about a month ago but I have seen all videos and can’t get over how cool volcanoes are
Thanks for the great content!
Another little gem. Thanks!
It’s crazy to think that this happened so recent, as well as the lassen peak volcano could have the potential to form such large eruptions!
Very Cool video !! Great JOB !! I got to check out Lassen and Shasta back in the 90s - you can feel the "massiveness" when you get up close to Lassen. I never knew why. It just felt WAY different than Shasta and Etna ( even tho Etna was live then, in '88 ) and the small cones in Arizona are no comparison at all. Rolling by Vesuvius on a train, you can feel that power too, now that I mention Etna. I guess I'll have to see if Mammoth and Yellowstone feel that way. Crater Lake - No words - touching the water in Crater Lake is a True Wake up call - that we are but small simple guests along for a ride on something so massive that we can't comprehend it.
It is really hard to sometimes spot calderas in some places that haven’t erupted in a long time
Fantastic history of California's volcanic history. Thank you!
Thanks for interesting info.
We live in So Oregon, so this information is helpful to understand our area. Thanks so much.
I really appreciate the important information about the Earth's history. Thank you for posting. I would like to know if the photography in the video of the eruptions we're actually photos of the eruptions that were mentioned?
that's a crazy huge event! i had no idea. i live in sw washington, but grew up in seattle. i was working at the pepsi plant in seattle when mt st helens erupted, so i went up on the roof to watch. amazing thing to see! lots of ash, and we were told not to run windshield wipers, as the ash would scratch the glass. some folks gathered it up and sold it to californians as pet rock food, lol! true story.
🤣🤣🤣🤣🤣. But I have to ask due to the pet rock craze never really taking off in the UK, how many people actually bought it as "pet food"?
I am new to this channel and do intend to stay. Amazing, thank you so much for your work!!! :-)
The whole of Lassen Volcanic Park is a fascinating area to visit. Most who just visit the Lassen Volcanic area have no idea how extent this region is and how far it extends.
I live fairly close to the Park area ..just a short drive. It is one of my favorite places to visit and hike.
There are at least 32 known volcano's in the Park region and almost all of them are still alive and well. Some list there being 36 volcanos that extend just south of Lassen Volcano and reach just near the Oregon border and it extends eastward into Nevada and Idaho border regions.
To really give an idea how powerful the volcanic blasts were that covered the nearby state areas and sent all that ash..
If you have traveled into and through the upper northern California regions, along highways and other areas you will often see lava rock and boulders that strew the landscapes of open fields that are today generally mostly used for cattle grazing. These areas are from around Yuba County and northward where you'll see most of these boulders and rocks. These were mostly what would be considered lava bombs..or chunks of thick globs of hor lava rock that blew from the Lassen Volcano.
That is how far away these rocks and boulders we're blown and landed. These rocks and boulders are seen all over the landscape and are still present after these many thousands of years.
These rocks have been used to help create many of the old land marker and barriers and boundary lines of walls that were built by way Chinese slavery camps back in WWI.
Don't be misled or fooled at how most of California was built and made to be what it is today.
One of my favorite volcano's to hike to and visit it Red Cinder Cone. It is found in the devistation region. It is a vast area covered in cinder ash, like pumice. It is like sand, but basically pumice cinder ash. It literally leveled and burned the entire area and killed everything where it landed..and it is many feet thick.. in areas it is like sink holes and drifts that act like quicksand but is just dry pumice cinder ash.
You can hike up and go into the volcano itself and into the crater to the vent. It is a dead volcano... So there is no fears to worry about anything..just stay on the designated paths.
If you happen to ever visit the park area..be sure to take your time and stay for several days and try to visit as much of it as possible..hike it, explore it. The vast variety of volcanism that is in that area will amaze you and leave you speachless. It is so beautiful and you can witness what volcanism is truly capable of. It is also very diverse at the different types of volcano's that are all in that region.. it is an area that has just about every type of volcano and possible type that could still erupt all in that one area.
Lassen did have a small eruption not too long ago. It was just a small blast that erupted and shows it is still very much alive.
In about 2015, there was a period where the volcano region suddenly heated up and became very active. They closed the park areas off due to dangers to the public. The mud pit regions boiled over and destroyed areas of cat walks and paths designated for the public to view the area. I was there when they closed the park off.. escorted people out.
There is a main mud put that you can drive past and is right along the highway there. It boiled over onto the road and was hot enough to cause damage to the road and highway ..to see art melting the pavement in spots.
There are frequent minor tremors and microquakes at Lassen all the time.
If your lucky enough while hiking Lassen to the peak.. which is a easy hike. You may experience one big enough to cause the dirt and materials to slightly shift and stir up .. which in my view was pretty awesome.. because it sends that reminder it is still alive and active. It never really is big enough to feel..just enough maybe to see the slight rumble or vibration.
Lassen Volcanic Park has a vast history and I imagine this guy could do a many mini part series for several weeks covering all the volcanos that are still active and alive and then another on all the dead vents and cones and such in the region.
You can also go see thermal pools and sulfur areas and there are even a few locations of natural hot bath/hot springs areas and resorts . There are also old lava caves and lava tubes you can visit and hike into and explore.
I love this channel so much, look forward to the videos in the evenings to help wind down.
Could you please do a video on how the Devil’s Causeway in Northern Ireland was created.
It was megaflora cut down by the nephilim. Volcanoes are gigantic slag piles from nephilim mining operations.
Your so awesome!!! Thank you so much. I really love your work, thank you.
You pronounced Nevada correctly! You're awesome!
My grandfather was a teenager and lived in Manton when Lassen erupted , I was told that he helped get people who were actually on the western side of Mt.Lassen to”watch “ the eruption, to safety…..true story.😁❤️🇺🇸👍
Hey guys, I lived in the area near Lassen for almost 10 years and have been to Lassen itself a couple times (the Devastation Zone, Manzanita Lake, Hot Rock, Bumpass Hell, etc.). Most of the time, me and my family lived in or near Redding - the largest city west of Lassen. When my dad was doing botanical fieldwork in the Clear Creek area on the west side of Redding, he saw old ash beds that were many feet thick. It made me wonder for years what volcano had produced them as - even though you can see several volcanoes from Redding - we were still pretty far away for there to be such thick ash beds. But it seems like this eruption may have been the source. It is crazy to think about places where I lived having been, at one point in time, buried under pyroclastic flows and/or ash fall to such a severe extent. And I wonder how many people in far northern California realize there is such immense eruptive capacity up there.
Can you do bit on the New Madrid seismic zone? I'm from the Mid West, Michigan to be exact. I remember waking up in the middle of the nite 15 or so years ago because there was a magnitude 4.0 somewhere south of where I lived. It was weird, I could feel my whole apartment swaying back and forth. People don't associate earthquakes and the Mid West but from what I gather they used to be very violent and caused the Mississippi to change it directional flow at one time.
Thank you. For some reason sources don’t go into enough detail on this eruption
Very good video! I gotta a topic for the next video... What are the present volcanos that could produce future super eruptions? (Other than the already known supervolcanos)
thx for the contente!
As I child I lived very close to mt. Lassen. I was privileged to meet a lady that witnessed the Lassen
Eruption
🌋 D' Fuego just erupted....
Very interesting. I would like to know if you have information about earthquakes happening in the St. Lawrence Valley.
I’d love to see a Vlog on the volcanoes that encircle Quito, Ecuador like Mount Pichincha, which I believe is still active.
4:00 Request: comparison video between La Garita, Wah Wah Springs, the three Yellowstone eruptions, and the chain of eruptions going back 17 million years along the Yellowstone hotspot.
Great channel ... I am amazed by how much volcanic activity is just ongoing all over the world all of the time. Something is brewing but maybe these eruptions in different places alleviate a castrophic event, Like Krakatoa. Along with the shift in tectonic plates which is also part of the equation. And alot of parts of the world seem to be long overdue for something really bad to happen and cause mass devastation. When people speak of millions of years thousands of years and on earth as earthlings we live a max of 100 years. The time concept is just meaningless. Like a light year is a very long way if ya had to walk it ?
There is no "shift" in tectonic plates. Whatever that means.
There are 40-60 eruptions going on at any moment, we just got better over the years detecting them. Even in remote areas. That's why for some people it might appear that activity is increasing somehow. But it's really not. Each volcano has its own behavior and only in rare cases do they influence each other - mostly when they are in very close proxmity and share the same magma chamber.
Please cover more on the Lassen Volcanic Park region and all of its have story of all the many volcanoes in its region of the park.especially the devistation areas. Maybe cover a more indepth coverage of how diverse the volcanic region is.
I have been very interested in volcanoes since I spent several US Navy Reserve deployments to the Western Pacific. My navagator, Lt. Cdr. Dan Lynch was a vulcanologist in civilian life. We have seen volcano's in Alaska, Japan, the Philippines and in the northern Mariana Islands. The northern most island of this group is Faralon de Paharos. A volcano that first broke the surface just after world war two. On the way up there we flew over several volcano formed islands including Guam, Tinian, and Saipan. One of the islands way up the chain is a small three island group called Maug. The three islands form a sort of triangle and are all that is left of a single island that exploded and the islands are the remains of a collapsed caldera. I still have pictures of it and several others.
Exciting times ahead no doubt!
Service info:
30000 feet = 9 km
Austin Texas Pilot Knob is volcano south east of the city , I been to lavs flow at McKinney Fall. Would be nice to hear from it .
Such an interesting subject, as I live in Klamath Falls, which is surrounded by volcanoes!
Thank you for all this rich information you share!
As a side note, I have lived here in Klamath Falls for 5 years and the last 2 years, the streets I walk with my dog are cracking a lot. I mean, there are cracks forming and some that were already there, are widening. Even my mom who has dementia pointed that detail out to me. Then of late, my dog has been sniffing those cracks with an interest. My driveway is cracking as well as my neighbors'. Could there be some sort of uplift here from a nearby volcano such as Crater Lake, Newberry or another volcano?
Thank you for your hard work?🇺🇲❤️
Wow! I'd be concerned about that too. I'm down here in the flat valley, so my worry from eruptions is mostly about flows, lahars and broken dams.
(edit: wrong "damn," lol)
I kept saying Wow over and over again.
I am interested in the fault line from the Solomon Islands down the eastern seaboard of the Australian State of Queensland. It roughly intersects with the land mass just north of Brisbane (forming the famous glasshouse mountains), and extends down into New South Wales where a major ancient volcanic cone & rim is formed around Mt Warning. I also wonder whether Mt Warning was a mere satellite to a larger caldera centred just west of Brisbane with a crater rim identifiable from Toowoomba in the west down south to the NSW Border Ranges. Can you do a piece on this if you have the time and materials? Thanks in advance.
Thanks for the way you explain easily complex things.
Started to follow you since La Palma eruption.
As you asked in other video for interesting geologic phenomenons, what about a position around 150 km east of Gibraltar, where there is lots of activity?
I live about 60 km south of Gibraltar and fearing a tsunami.
All the best to your channel.
could you be more specific which area you are referencing?
Thanks for noticing my message!
Position around 35 28,5 North 4 17,2 West
I receive warnings about seismic activity there several times a day.
@@helderferreira1610 looks like that's were the european plate boundary is. From what I can see it's mainly a strike-slipe fault - so sideway movement. The danger of a tsunami from there should be small.
But it's good that you get frequent notification about ongoing activity!
Thank you for your video! I am going with a group of kids to Lassen Volcanic park in a few months. Would you mind sharing your sources so I can give them a really cool geologic history lesson?
There is a really cool volcano shapped mountain in northern californa called Black lassic is almost 6,000 feet you can see shasta and lassen form the top. It's mainly made out of serpentine and mudstone
I'm a tad curious how this caldera didn't get a mention in your calderas of California video.
I would love to see information on Glacier Peak in Snohomish County in Washington State. Apparently it is creating concerns on a very high alert for eruption. Thank you for this channel it is very interesting.
I was there in 1978... 44 years ago... good heavens, the eruption was barely 60 years before then
Please! Stone Mountain in Georgia Us is neat! Just ignore all of the modernity on it.
I would love to see a video discussing DI (deflation-inflation) events.
Curious if Colorado has any active volcanos and maybe an explanation why many mountains look like they have been turned on to their side. The rock layers being diagonal sometimes almost vertical and not horizontal. As can be clearly seen driving to Central City/Blackhawk area from Golden.
Colorado technically does have one “active” volcano. Dotsero Is a maar crater and is the youngest volcano in Colorado, erupting only 4200 years ago. Geologyhub already has a video of this volcano.
m.ruclips.net/video/69eNdwg6L2g/видео.html
Very interesting! I live in Missouri and we have an area that is called Johnson's Shut-ins and they say it is formed from volcanic activity 70 million years ago. How can they know what type of volcanic activity it was and why isn't it active anymore?
I’d love to see videos on either Mt Belknap or even Monroe Peak in Utah, apparently they’re ancient stratovolcanoes and I’d love to learn more about them (if there is anything to learn of course)
Here’s my video on Belknap: m.ruclips.net/video/vY_CYXbEYlo/видео.html
Any info on what created the ash layers at the Cove Palisades State Park in Oregon?
Can you do Mount Makilling? Near Taal
Any way we can deal with all these stupid spam bots? They really make reading the comments an exercise in torture. I report them, but they're always coming back.
Wow! The fact that lessen Peak had such a massive irruption in recent history means it could definitely happen again one day.
Maybe, maybe not.. Lassen is right near the southern end of the Cascadian subduction zone. South of that point there’s a lack of subducting oceanic crust that feeds volcano formation. That’s why all the active volcanos are Northern CA, OR, and WA. But I could be wrong, I’m just an amateur.
I would like to say I appreciate the knowledge about lassen and the evolution of it. I don't ever get on the website of RUclips to be able to see replies but I remember as this video went on, that I requested this information. The eco environment after that mega eruption and how it effect for million yrs after.
I hope all is well. And I appreciate the notice. Love all.
Norway is not known for their volcanoes, but we actualy have one. Situated on the Island of Jan Mayen, there you will find the 2277 meters high Beerenberg volcano. This is the worlds most northely active volcano.
Can you make a episode about that one?
Thank you for great content.
He has already covered this volcano
ruclips.net/video/cA4v1FDzYoY/видео.html
Suggestion, the newly formed ice volcano of Kazakhstan, located in the Almaty region.
can you make a video about mount Bromo? your explanation is surely better than wikipedia :D
Eyes on Sisters, Oregon, one of the peaks is showing once again it is still active.
"Ash - can you hear me ???" ///"Yes - I can hear you"./// Mt. Rainer has a VERY bad temper. And he's located right near Seattle....
Mount Te-hay-ma is the proper pronunciation.
Is there any to determine the crater that was created by this eruption? Like leaving instruments in the area and using earthquake wave analysis to get a picture of what's underneath?
Can you do a video on lava spines? Those are one of the weirdest geological structures in my opinion.
What the hell.
@@wokevirushandsanitzer5300 Yeah the damn bots are toxic as hell dumping toxic soliciting comment replies the best you can do is to report the shits. the hard part is figuring out which of the labels to use pornography or commercial content since both appear to apply. Sigh.
@@Dragrath1 yt it the thot bot.. mind blown why nothing is done about them
@@Dragrath1
True. I see there's a reply, and it's one of those. I just report. The problem is, so many bots, they just don't stop.
*Wow* The property I lived on in Palo Cedro was a hill, clearly the side facing Mt Lassen had been peppered with lava rocks. Many many rocks, all over Shasta County but no one really knew when it happened, wasn't the 1915 eruption, humans would have documented that. BUT never dreamed 609,000 years old!
What do you know about recent activity of medicine lake volcano ?
Here’s a topic I’ve always wondered about. How many super volcanos are there in the world, and which ones would be deemed most dangerous or have the highest chance of eruption?
Nine that are currently active, that we know about. He has covered most of them already in prior videos, or maybe all of them by now. Of those, Campi Flegrei in Italy might win the "most dangerous" award, due to its location.
@@brongulus2617 It's also the most active supervolcano and also a high chance of erupting in our lifetime
Could you give an update on the magma balloon developing underneath NEW ENGLAND. Thank you.