Terrific episode, thank you! Everyone's always fretting about Yellowstone & what happened 640000 years ago, but Mazama happened only 7800 years ago, by geologic standards almost yesterday.
As a kid we vacationed there living out side of Portland at the time. My dad took photos looking down at the lake and the trees along the rim and down towards the water, and it creates a weird photo because the lake looks like the sky with trees pointing sideways.
My husband and I had the amazing opportunity to swim (briefly) in the ice cold water of Crater Lake. It was like swimming in liquid crystal, blue and green. The bottom was not visible giving a strange feeling of swimming in an infinity pool. I do not know if they still allow swimming from Wizard Island. This amazing site is well worth a trip to Oregon if you are passionate about volcanos. You can also cross country ski around the rim on very deep snow in the winter. Love this channel!
There was talk about even discontinuing trips to wizard Island for the tourists. Don't know what happened. Everything that goes in that lake stays there. After a fire at the lodge years ago, we wanted it removed and placed elsewhere. Gubbermint never listens.
@@outlawbillionairez9780if so then I was lucky to be there ones … it’s now few years ago when I was there and I was there and was hiking around until the boat came and picked me up again .. nice place …
@@outlawbillionairez9780 why would you remove it? havving dinner there at sunset was overlooking the lake was one of my most fond memories visiting from Canada
@@phalcon23 There was a bunch of other buildings up there in the past that were taken down. The argument was the lodge would be expensive to replace and situate outside the crater area. A lot of us didn't even want a paved road there. Every piece of trash, engine oil, dropped phones, camping gear, finds it's way into the lake. And it's irretrievable. We've treated the crater like a tourist trap, instead of the National Treasure it really is. Do you know, Native Americans never told white settlers about Crater lake. It's still considered to be the most sacred place in Oregon. I want people to come to Oregon and spend money, and see the beauty we have. We can find some middle ground. We could have even more lodging as long as it was outside the crater rim. And maybe a shuttle service to the top. The lake is over a thousand feet deep. There's no oxygen to break down things that end up at the bottom. Junk or pollution will stay forever. I've been in Canada on motorcycle, and felt honored to be a respectful guest in a beautiful country. That's all I'm asking for crater lake. My favorite Oregon place is near Crater lake. It's Diamond Lake. Plenty of tourist stuff and accomodations. Lodge, store, apartments, cabins, boat rental, fishing, biking and hiking. Nestled between two beautiful ancient volcanoes. See it, If you get a chance. I hope you come back to this wonderful place. I hope you feel welcome. I hope to return to my birthplace someday. Ottawa looks like a great place! 😊👍
Did you catch that part @4:08 where he said when Mt. Mazama blew, you could be 70 miles away at the time and still not be safe. Now think about Mt. Rainier. Seattle, Tacoma, Olympia, and a bunch of bedroom communities & other major towns all lie within a 70 mile perimeter of our mountain
_scoots chair a little further away from Mt Hood_ There’s a reason most of the most dangerous volcanoes in the US are in Washington and Oregon, that’s for sure. Most of our biggest cities are within some form of danger zone of one or more volcanoes, even if that danger is mostly just ash or debris coming down the rivers.
I visited that place about 6 or so years ago. Absolutely beautiful. My question is since there were most likely native Americans that would have lived close to the volcano. Would it be potentially possible to find a Indian village preserved in much the same way Pompeii was?
There are likely artifacts. The local tribe, the Klamath, were certainly present and the time and have stories about the eruption. I don't know about any sites off the top of my head but I am not a tribal member, I just live nearby
Considering how much more powerful Mount Mazama’s eruption was to Vesuvius in 79 AD. It’s unlikely any remains survived at all or they’re buried under hundreds of feet of ash.
With historical records in hand we knew roughly where to dig for Pompeii. Native records were oral tradition only with no written language, so knowing where those villages we want to to dig are is a bit of a showstopper until higher resolution sub surface surveys can clue us in to where to dig. Dig it? 😉
I find it cool that the Native Americans knew that crater lake was once a mountain. From stories passed down for generations it truly is amazing. They had to think the world was ending.
Sometime you should look into the more obscure cinder cones and crater rows in the Oregon section of the Cascades. Practically the entire chain is covered with volcanic edifices with nearly no gap. There's some really interesting systems there that are incredibly obscure, especially for being in such a famous chain.
When each rhyolite dome formed inside crater lake after the collapse, would the lake have completely evaporated? Or would it have just been very very steamy?
If you look at volcanoes that are already active with lakes in them. The lakes usually get VERY acidic, which may last for years. For a little bit they likely do evaporate
There is a switchback trail(Cleetwood Cove Trail) down about a mile long which is a pretty easy walk, did some shallow cliff diving thankfully into water and not lava. Then came the 1 mile walk back up - don't forget about that part. My home is about 50 miles east of Crater Lake. The soil is what I consider to be an ashy gritty sand anywhere from a few inches to a few feet thick and then there is this layer of what we call hardpan. Very difficult to penetrate for fence posts or what have you. Sometimes we get wind and a tree will go over and you can see the trees also had trouble getting through the hardpan as their roots are mostly all above it. When Geologyhub said there was a superheated ash it made me wonder if that's what the hardpan is composed of. Maybe the heat fused the ash together more solidly.
One of the things I noticed when visiting the lake, were the clouds of yellow sulfur floating here and there in the lake, occasionally interrupting the otherwise fairly uniform deep blue of the lake.
Not geological, but there is a hemlock trunk floating vertically that has been roaming Crater Lake for over 130 years, refusing to sink. They call it The Old Man. How it has remained floating for so long is a subject of debate. It moves around the lake with surprising speed, once having logged almost 4 miles in a single day. Supposedly they tied it up once to do submersible exploring and stormy weather appeared out of nowhere, so they cut the Old Man loose. It has a strange aspect about it.
0:05 "its up to 2000 foot high steep walls which stretch across a length of 20.8 miles" Where did you get that length from? The circumference of the rim of Crater Lake is 33 miles and the lake is 5 miles by 6 miles across.
When I visited Crater Lake, I stayed at Klamath Falls during Wildfire Season. When you said ash covered that area during the eruptions, I had to imagine my memories of the red, stinky skies, with speckles of ash constantly falling as they did with the wildfires.
I've been fortunate to go to Crater lake several times. There's so much to see and do there if you love geology and the outdoors! I have yet to make the trip out to Wizard island but found the Pinnacles which doesn't get talked about so much. Thank you for posting this great historical account of the lake and of Mount Mazama! I'm going to view it a second time to make sure I didn't miss anything!
Mt Scott is a nice little ski having spent a 4 days touring the rim a few years back. Didn’t see a single other person, but almost had a fox run into me while chasing some small critter.
Interesting. I've had the great fortune of visiting Crater Lake. I don't remember if it was winter or Spring, but there were walls of snow two stories high to drive through! Absolutely gorgeous though. I wonder how long it took for the land to sink creating the caldera? Was it a slow process or did it happen simultaneously during one of the last cataclysmic eruptions? I live on the Big Island of Hawaii, and was a witness to Kilauea's caldera sinking and expanding during the 2018 eruptions. That process only took days. Also, I wonder how geologists are able to determine the extent of the ash ejected during Mt. Mazama's eruptions. There are so many volcanos erupting in that region over millennia. I'm curious how they can distinguish and attribute the ash layers hundreds even thousands of miles away as belonging to Mazama. As always, another great video from GeologyHub.
Some small interesting details not mentioned; because 7800 years is a geological blink of an eye, the cataclysmic eruption is still slowly cooling. The floor of Crater Lake stays warmer than the surface, averaging @55f, it's a giant heat sink. It took about a thousand years for water to pool as it defeated the evaporation point from the hot floor.
Thanks! I really love how you have revisited Crater Lake; are you going to do the same for other volcanoes? I also really love how this video is much longer than usual! On the La MEVE database, when I checked Mount Mazama's eruption entry, the 5,783 BCE eruption is listed as having a plume height of 55 kilometers! Is this possible?
Tourist tip: Crater Lake is just as gorgeous, and much more relaxing than the Grand Canyon. Make sure to put it on your western states destination list. 🙂
Crater Lake really is a sight to see! Best time to visit is early summer, after the snow has melted and before any nearby wildfires obscure the view. The Pumice Desert to the north of Crater Lake has an otherworldly feel to it, much like a lunar landscape, but with color (mostly ruddy tones).
I've been to Crater Lake. Amazing. The water is such an amazing blue color. Really worth the long drive. I felt a peaceful yet earie feeling while being there. The massive size of it, you could be wiped out in an instant.
Please could you do a video on the large Sand Sheets of the West Coast of the USA and Mexico, like what caused them and how large was the Super Tsunami that created those giant sand sheets, and could it happen again 😊
I have a friend who has his own plane and he’s taken multiple pictures of the island in crater lake and noticed that the island was taller in his pictures as time moved on
@@kujo1725 I was younger and I said to my mom who was showing me the images, "Is that zit in the middle growing?" LOL Idk if it is still growing but at the time it seemed weird. Maybe the lake evaporated more over time or what. I just remember seeing a visible height difference.
There is another dorment volcano near crater lake. Mount Pitt or also known as Mount Mclaughlin is a large strato volcano with a wonderful shape. She is also relatively young. We don't really know when she will erupt either
I LIVED IN LA PINE , OREGON A GOOD FIVE YEARS. AND CRATER LAKE WAS OUR DISNEYLAND . UOU NAME IT , WE DID IT . WENT TO THE CRATER THROUGHOUT THE WINTER UNTIL THEY CLOSE IT DOWN . THE TUNNEL TO THE LAKE THROUGH HUGE ROUND PIPES WAS BREATH TAKING .
There is underwater hot springs and gas vents in crater lake. Not sure where I saw it at but I saw a video where scientists used an underwater ROV to explore the floor of Crater Lake and found active hydrothermal venting
Apparently, it's just a coincidence of the geography, with different ridges and other topographic features making a circle. People have checked it out on the ground and it doesn't seem to be a crater. Sure looks like one though!
Probably! It's a bit hard to tell going far back, because such events are pretty quick geologically speaking. But the Tambora, Samalas, and Paektu eruptions all caused demonstrable cooling over a wide area, so it seems safe to assume that a good portion of VEI 7+ eruptions would have done similar. Though it is important to remember that the 'year without a summer' was greatly worse in Europe compared to the rest of the world. For almost all it was just an unusually cold year, while for Europe it was downright frigid. It's probable that a lot of older volcanic eruptions had some especially severe effects in specific places like that.
Question: How do scientists know so accurately the years of activity and mountain heights before caldera forming eruption? 113 years of quietness? By the way, love your content. Keep up the good work.
Paleoaltimetry for height, mind you that the heights are just good guesses, not certain. Also eruptions are easy, you find ash, measure radioactive decay, and boom.
How impermeable are the crater walls? The water pressure at the bottom has to be immense. Does the lake continue to deepen? Could it rise higher up the rim? Are there springs around the outside of the crater? Could there be a failure someday resulting in a gradual draining or release in a megaflood?
I thought the prevailing theory on this volcano was that Mazama's collapse caused the center of the volcano's structure to push down into the emptied magma chamber, essentially destroying the 'void' (or at least that's how Wikipedia describes it, as I recall), thus drastically reducing the chance of large future eruptions. Is that just bunk?
Come to Oregon. We're mostly friendly. Lots to see. We Need your 💸. You have to see Mount Mazama in person. Stay at Diamond Lake next door. You'll love it. 👍
Question. By now, I understand about the evolution of lava from basalt to andesite and eventually rhyolite, and that a rhyolite eruption can be a very violent event, but afterwards, how did the later eruptions revert to andesite?
Volcanic systems are very complicated and can involve many different kinds of magma chambers and or highly heterogenous magma chambers. The easiest way to get a lower silica magma from a higher silica parent melt is to have a fresh hot basaltic intrusion into that older melt body reenergizing the system and allowing intermediate magmas to form.
Anybody else notice that extremely large circular formation/ mountain range northeast of Crater Lake? Did that form naturally or did a catastrophic event like an astroid impact or ancient supervolcanic eruption form that?
Out of curiosity, how do we exactly know if a stratovolcano is capable of a caldera collapse? Outside of dicite/rhyolitic lava, and large magma chambers.
Any volcano has the chance too collapse into a caldera if the chamber gets low enough and the ground above is weak enough. Kilauea in Hawaii is a perfect example being low silica magma/lava and stil collapsing@@ikostarks3867
Professor Shawn Willsey made an interesting point about this lake: it's name is technically incorrect... It's not a crater, but a caldera. As this is the case, it should be called "Caldera lake"... Just sayin'. Peace.
You are right. I have, as of yet informally, named several locations myself. I always try to be accurate as to the topology and geology... usually, the places acquire a name due to a notable event that occurred there: "Bluegill Bend", "John's Pit", and "Torn Scrotum Slopes", to name a few. peace.@@Fritzsche-ki6gv
Never mind "Crater Lake".....let's talk about (THE ELEPHANT IN THE ROOM). Using Crater Lake as the center of a clock face, look NORTH-EAST and you will see a HUGE circular feature. I've been asking about this structure for almost 50 years. How do you explain this ??????
Didn't have a problem when I went down to swim. Usually see them in the surrounding zones though, especially Spring Creek down stream. Not so much when you canoe upstream though.
@@TheRealRedAceYes, silly you. Active does not mean 'erupting'. It means 'has erupted recently and there is no reason to think it won't erupt again'. In practice 'recently' is most often taken as since the end of the last ice age, but even if you take a much shorter period Mazama still qualifies. As the video states, there have been at least three eruptions since the caldera collapse, one of them producing Wizard Island.
@@davidcranstone9044 You're wrong. Active means active, as in fumaroles, quakes etc, not necessarily actually erupting. You are talking about 'dormant', which means doing nothing at the moment but will likely erupt again. Eg, Yellowstone is active, Vesuvius is dormant. Mazama is dormant.
I remember when geologyhub only had like 6k followers. Wow how much this channel has grown! So glad to see so many volcano enthusiasts!!
Very true!
Yup! I remember subscribing about 4 years ago when he only had 4,000 or 5,000 subs
I remember when they had 0😎
Terrific episode, thank you! Everyone's always fretting about Yellowstone & what happened 640000 years ago, but Mazama happened only 7800 years ago, by geologic standards almost yesterday.
As a kid we vacationed there living out side of Portland at the time. My dad took photos looking down at the lake and the trees along the rim and down towards the water, and it creates a weird photo because the lake looks like the sky with trees pointing sideways.
Crater lake is gorgeous. Love that place.
my favorite place in the northwest US, if not the world. (that I have visited)
I pooped in it
As often said, its waters are so clear and pure!
My husband and I had the amazing opportunity to swim (briefly) in the ice cold water of Crater Lake. It was like swimming in liquid crystal, blue and green. The bottom was not visible giving a strange feeling of swimming in an infinity pool. I do not know if they still allow swimming from Wizard Island. This amazing site is well worth a trip to Oregon if you are passionate about volcanos. You can also cross country ski around the rim on very deep snow in the winter. Love this channel!
One time, driving thru on 62, end of winter, there was around 50 feet of snow. Can't describe the place in words.
There was talk about even discontinuing trips to wizard Island for the tourists. Don't know what happened. Everything that goes in that lake stays there. After a fire at the lodge years ago, we wanted it removed and placed elsewhere. Gubbermint never listens.
@@outlawbillionairez9780if so then I was lucky to be there ones … it’s now few years ago when I was there and I was there and was hiking around until the boat came and picked me up again .. nice place …
@@outlawbillionairez9780 why would you remove it? havving dinner there at sunset was overlooking the lake was one of my most fond memories visiting from Canada
@@phalcon23 There was a bunch of other buildings up there in the past that were taken down. The argument was the lodge would be expensive to replace and situate outside the crater area. A lot of us didn't even want a paved road there.
Every piece of trash, engine oil, dropped phones, camping gear, finds it's way into the lake. And it's irretrievable. We've treated the crater like a tourist trap, instead of the National Treasure it really is.
Do you know, Native Americans never told white settlers about Crater lake. It's still considered to be the most sacred place in Oregon.
I want people to come to Oregon and spend money, and see the beauty we have. We can find some middle ground. We could have even more lodging as long as it was outside the crater rim. And maybe a shuttle service to the top. The lake is over a thousand feet deep. There's no oxygen to break down things that end up at the bottom. Junk or pollution will stay forever.
I've been in Canada on motorcycle, and felt honored to be a respectful guest in a beautiful country. That's all I'm asking for crater lake.
My favorite Oregon place is near Crater lake. It's Diamond Lake. Plenty of tourist stuff and accomodations. Lodge, store, apartments, cabins, boat rental, fishing, biking and hiking. Nestled between two beautiful ancient volcanoes. See it, If you get a chance. I hope you come back to this wonderful place. I hope you feel welcome. I hope to return to my birthplace someday. Ottawa looks like a great place! 😊👍
Keep the PNW content coming!
Broken top, please?
Did you catch that part @4:08 where he said when Mt. Mazama blew, you could be 70 miles away at the time and still not be safe. Now think about Mt. Rainier. Seattle, Tacoma, Olympia, and a bunch of bedroom communities & other major towns all lie within a 70 mile perimeter of our mountain
_scoots chair a little further away from
Mt Hood_
There’s a reason most of the most dangerous volcanoes in the US are in Washington and Oregon, that’s for sure. Most of our biggest cities are within some form of danger zone of one or more volcanoes, even if that danger is mostly just ash or debris coming down the rivers.
Tieton Andicite and Goat Rocks please
Or the south sister in bend
Amazing video once more. So impressed by your explanation and detailed event sequence. Love it! (trained and professional geologist here ;-)
Glad you enjoyed it!
@@GeologyHubdidnt ya already do a video.on crater lake
I visited that place about 6 or so years ago. Absolutely beautiful. My question is since there were most likely native Americans that would have lived close to the volcano. Would it be potentially possible to find a Indian village preserved in much the same way Pompeii was?
That’s actually an interesting question
There are likely artifacts. The local tribe, the Klamath, were certainly present and the time and have stories about the eruption. I don't know about any sites off the top of my head but I am not a tribal member, I just live nearby
Considering how much more powerful Mount Mazama’s eruption was to Vesuvius in 79 AD. It’s unlikely any remains survived at all or they’re buried under hundreds of feet of ash.
With historical records in hand we knew roughly where to dig for Pompeii. Native records were oral tradition only with no written language, so knowing where those villages we want to to dig are is a bit of a showstopper until higher resolution sub surface surveys can clue us in to where to dig. Dig it? 😉
Any settlements were likely temporary such as wood huts.
im always so pumped when oregon comes up for like no reason. Woo my state!
Same ! And in my opinion central oregon is the best part of oregon
one of the coolest most unique places I've ever been. Will never forget Crater Lake and the years I lived in the PNW
I find it cool that the Native Americans knew that crater lake was once a mountain. From stories passed down for generations it truly is amazing. They had to think the world was ending.
Wow! I didn’t know this happened so recently!!😮
Sometime you should look into the more obscure cinder cones and crater rows in the Oregon section of the Cascades. Practically the entire chain is covered with volcanic edifices with nearly no gap. There's some really interesting systems there that are incredibly obscure, especially for being in such a famous chain.
Excellent presentation, thanks for the enlightenment 👍👍
When each rhyolite dome formed inside crater lake after the collapse, would the lake have completely evaporated? Or would it have just been very very steamy?
Most likely created a phreatic explosion how large not sure
If you look at volcanoes that are already active with lakes in them. The lakes usually get VERY acidic, which may last for years. For a little bit they likely do evaporate
Thank you for this very informative video.
There is a switchback trail(Cleetwood Cove Trail) down about a mile long which is a pretty easy walk, did some shallow cliff diving thankfully into water and not lava. Then came the 1 mile walk back up - don't forget about that part. My home is about 50 miles east of Crater Lake. The soil is what I consider to be an ashy gritty sand anywhere from a few inches to a few feet thick and then there is this layer of what we call hardpan. Very difficult to penetrate for fence posts or what have you. Sometimes we get wind and a tree will go over and you can see the trees also had trouble getting through the hardpan as their roots are mostly all above it. When Geologyhub said there was a superheated ash it made me wonder if that's what the hardpan is composed of. Maybe the heat fused the ash together more solidly.
One of the things I noticed when visiting the lake, were the clouds of yellow sulfur floating here and there in the lake, occasionally interrupting the otherwise fairly uniform deep blue of the lake.
please talk about "La caldera de coli" the (Possibly) active supervolcano near Guadalajara, Mexico, which created the "Tala de toba" event
Fantastic video. Would be nice to hear more about the cascade volcanoes. Mt. Adams, Mt. Meager, Newberry volcano, Glacier Peak etc 😊
Not geological, but there is a hemlock trunk floating vertically that has been roaming Crater Lake for over 130 years, refusing to sink. They call it The Old Man. How it has remained floating for so long is a subject of debate. It moves around the lake with surprising speed, once having logged almost 4 miles in a single day. Supposedly they tied it up once to do submersible exploring and stormy weather appeared out of nowhere, so they cut the Old Man loose. It has a strange aspect about it.
0:05 "its up to 2000 foot high steep walls which stretch across a length of 20.8 miles"
Where did you get that length from? The circumference of the rim of Crater Lake is 33 miles and the lake is 5 miles by 6 miles across.
Where did you get 33 miles? The rim hike is 20.8,
It's the 6.6 mile mean diameter x pi.
When I visited Crater Lake, I stayed at Klamath Falls during Wildfire Season. When you said ash covered that area during the eruptions, I had to imagine my memories of the red, stinky skies, with speckles of ash constantly falling as they did with the wildfires.
I've been fortunate to go to Crater lake several times. There's so much to see and do there if you love geology and the outdoors! I have yet to make the trip out to Wizard island but found the Pinnacles which doesn't get talked about so much. Thank you for posting this great historical account of the lake and of Mount Mazama! I'm going to view it a second time to make sure I didn't miss anything!
Mt Scott is a nice little ski having spent a 4 days touring the rim a few years back. Didn’t see a single other person, but almost had a fox run into me while chasing some small critter.
This reminds me of your earlier videos featuring the volcanoes of each state
As I was watching this I could not help but think of Mount Rainier.
Interesting. I've had the great fortune of visiting Crater Lake. I don't remember if it was winter or Spring, but there were walls of snow two stories high to drive through! Absolutely gorgeous though. I wonder how long it took for the land to sink creating the caldera? Was it a slow process or did it happen simultaneously during one of the last cataclysmic eruptions? I live on the Big Island of Hawaii, and was a witness to Kilauea's caldera sinking and expanding during the 2018 eruptions. That process only took days. Also, I wonder how geologists are able to determine the extent of the ash ejected during Mt. Mazama's eruptions. There are so many volcanos erupting in that region over millennia. I'm curious how they can distinguish and attribute the ash layers hundreds even thousands of miles away as belonging to Mazama. As always, another great video from GeologyHub.
My favourite USA volcano
Aloha. Mahalo for the info. This is one of the added "Volcanoes" to see in our bucket list.
Some small interesting details not mentioned; because 7800 years is a geological blink of an eye, the cataclysmic eruption is still slowly cooling. The floor of Crater Lake stays warmer than the surface, averaging @55f, it's a giant heat sink. It took about a thousand years for water to pool as it defeated the evaporation point from the hot floor.
You said Oregon correctly... kudos!
Right?!
I get how we can date old eruptions, but could you do an explainer on how we date old earthquakes? What markers do they leave behind for us to find?
Thanks! I really love how you have revisited Crater Lake; are you going to do the same for other volcanoes? I also really love how this video is much longer than usual! On the La MEVE database, when I checked Mount Mazama's eruption entry, the 5,783 BCE eruption is listed as having a plume height of 55 kilometers! Is this possible?
Tourist tip: Crater Lake is just as gorgeous, and much more relaxing than the Grand Canyon. Make sure to put it on your western states destination list. 🙂
Crater Lake really is a sight to see! Best time to visit is early summer, after the snow has melted and before any nearby wildfires obscure the view. The Pumice Desert to the north of Crater Lake has an otherworldly feel to it, much like a lunar landscape, but with color (mostly ruddy tones).
Very cool, Been on wizard Island before, the boat rides are awesome, the hike down isn't bad, but hiking out....lol, rough
That was my favorite spot on my last west-coast trip. It was astounding! I kept wondering why they added fish to the lake.
I've been to Crater Lake. Amazing. The water is such an amazing blue color. Really worth the long drive. I felt a peaceful yet earie feeling while being there. The massive size of it, you could be wiped out in an instant.
Please could you do a video on the large Sand Sheets of the West Coast of the USA and Mexico, like what caused them and how large was the Super Tsunami that created those giant sand sheets, and could it happen again 😊
I've been to the Oregon dunes many times. It would be interesting to find out how that huge amount of sand got there.
been there twice and it's magnificent.
I live in Klamath Falls (nearest city of notable size) and i had no idea CL was active
There’s a lot of stuff active, the mountain above your town (Mt Mcloughlin) is active as well
Pretty stark reminder of what lives in my backyard. I didn’t realize exactly how high of a threat it is. Yay
I have a friend who has his own plane and he’s taken multiple pictures of the island in crater lake and noticed that the island was taller in his pictures as time moved on
That's kind of cool, didn't realize wizard Island was still technically growing
@@kujo1725 I was younger and I said to my mom who was showing me the images, "Is that zit in the middle growing?" LOL Idk if it is still growing but at the time it seemed weird. Maybe the lake evaporated more over time or what. I just remember seeing a visible height difference.
Has to be evaporation, in order for the island to “grow” lava would have to be building up, hasn’t been noted, so definitely a lake level thing
Excellent presentation !
Thank you for your great programs. Can you talk about Mt Tehama in Northern California?
There is another dorment volcano near crater lake. Mount Pitt or also known as Mount Mclaughlin is a large strato volcano with a wonderful shape. She is also relatively young. We don't really know when she will erupt either
GeologyHub did a piece on Mt. McLoughlin about a year ago.
I LIVED IN LA PINE , OREGON A GOOD FIVE YEARS. AND CRATER LAKE WAS OUR DISNEYLAND . UOU NAME IT , WE DID IT . WENT TO THE CRATER THROUGHOUT THE WINTER UNTIL THEY CLOSE IT DOWN . THE TUNNEL TO THE LAKE THROUGH HUGE ROUND PIPES WAS BREATH TAKING .
Could you make a video on the Fogo volcano in Cape Verde?
Once any other Cascade volcanoes would change to rhyolite you can expect for the volcano to self destruct in a massive eruption, at least a VEI 6
Curious as you mention that this eruption was the 2nd strongest explosive eruption in the last 11,000 years what was the first?
Probably Krakatoa. 🙂
Kikai in Japan, just a bit larger.
@@nostromo7928 Krakatoa was smaller than crater lake.
There is underwater hot springs and gas vents in crater lake. Not sure where I saw it at but I saw a video where scientists used an underwater ROV to explore the floor of Crater Lake and found active hydrothermal venting
What is the ring feature just to the north east of crater lake visible in the satellite image shown at 1:28?
Apparently, it's just a coincidence of the geography, with different ridges and other topographic features making a circle. People have checked it out on the ground and it doesn't seem to be a crater.
Sure looks like one though!
Interestingly Tambora and Mazama were almost identical in size - would have been interesting if 5782 BC was another “year without a summer”.
Probably! It's a bit hard to tell going far back, because such events are pretty quick geologically speaking. But the Tambora, Samalas, and Paektu eruptions all caused demonstrable cooling over a wide area, so it seems safe to assume that a good portion of VEI 7+ eruptions would have done similar. Though it is important to remember that the 'year without a summer' was greatly worse in Europe compared to the rest of the world. For almost all it was just an unusually cold year, while for Europe it was downright frigid. It's probable that a lot of older volcanic eruptions had some especially severe effects in specific places like that.
Thanks!
1:28 what's that circular feature to the NE of Crater Lake, maps show that the east part of it is called Bald mountain, looks like a 40 km wide mesa
Visited there this summer!
Didn't you make that Crater Lake video earlier? *looks at the playlist*, it was two or three years ago?
As a geologist, would you consider giving the East Coast a volcano? I’m tired of the west getting all the attention.
He's done a few.
very interesting. It would have been epic to see that volcano erupt, even if it meant you wouldn't survive.
Lots of people did survive. Some of the oldest stories on earth come from the oral tradition of the people from that area and are about the eruption.
with all that water in the crater lake if something opened up would all that water cause a huge explosion?
Question: How do scientists know so accurately the years of activity and mountain heights before caldera forming eruption? 113 years of quietness?
By the way, love your content. Keep up the good work.
Paleoaltimetry for height, mind you that the heights are just good guesses, not certain. Also eruptions are easy, you find ash, measure radioactive decay, and boom.
This volcano caused a volcanic winter worldwide. Of that there is no question. The question I have is, for how long? One year? Two years? More?
Could this kind of eruption happen in another Cascade volcano?
yes. highly unlikely in our time currently luckily
How impermeable are the crater walls? The water pressure at the bottom has to be immense. Does the lake continue to deepen? Could it rise higher up the rim? Are there springs around the outside of the crater? Could there be a failure someday resulting in a gradual draining or release in a megaflood?
I thought the prevailing theory on this volcano was that Mazama's collapse caused the center of the volcano's structure to push down into the emptied magma chamber, essentially destroying the 'void' (or at least that's how Wikipedia describes it, as I recall), thus drastically reducing the chance of large future eruptions. Is that just bunk?
Come to Oregon. We're mostly friendly. Lots to see. We Need your 💸. You have to see Mount Mazama in person. Stay at Diamond Lake next door. You'll love it. 👍
Such glory.
It's less than an hour from where I live.
Thanks.
Yeah, Crater Lake is not extinct. Mount Mazama blew itself to pieces 7800 years ago, but Wizard Island is the sign it's slowly rebuilding itself.
Question. By now, I understand about the evolution of lava from basalt to andesite and eventually rhyolite, and that a rhyolite eruption can be a very violent event, but afterwards, how did the later eruptions revert to andesite?
Volcanic systems are very complicated and can involve many different kinds of magma chambers and or highly heterogenous magma chambers.
The easiest way to get a lower silica magma from a higher silica parent melt is to have a fresh hot basaltic intrusion into that older melt body reenergizing the system and allowing intermediate magmas to form.
@@Dragrath1Thank you.
176 cubic km's? I thought Kurile Lake was bigger?
Probably won't erupt for a long time great video?
Love your videos. Sue when you zoomed in. To the north and east. There is a round structure. Is this a impact crater.
No, volcanic vents and other remnants, circular shape is coincidental
@@Fritzsche-ki6gv it must of been a big eruption. Do you happen to know the name of the volcanic eruption.
@@bullfrommull it's not a single eruption, its multiple volcanic features that make a circle
@@Fritzsche-ki6gv cheers for the info.
What is the even larger geographic circular feature to the NE?
Anybody else notice that extremely large circular formation/ mountain range northeast of Crater Lake? Did that form naturally or did a catastrophic event like an astroid impact or ancient supervolcanic eruption form that?
Volcanic remnants, spatter cones, and rifts, it just happens to be circular
You said Crater Lake is the 2nd most explosive in this epoch, what was the 1st?
Do hicks dome in Illinois!
01:29 What is the circular depression to the north west of crater lake? Is it volcanic ?
Yes, it’s a coincidentally shaped formation
We need some YNP content please :)
Oh, good. I was just about to go to bed, and I was nearly out of existential threats to lose sleep over.
I drive by its north entrance every weekend
Mnt Shasta may have same type of event within next few thousand yrs.
Out of curiosity, how do we exactly know if a stratovolcano is capable of a caldera collapse? Outside of dicite/rhyolitic lava, and large magma chambers.
Any volcano has the chance too collapse into a caldera if the chamber gets low enough and the ground above is weak enough. Kilauea in Hawaii is a perfect example being low silica magma/lava and stil collapsing@@ikostarks3867
What do you think is the next cascade volcano to produce a VEI 7 eruption like that?
Crater lake
Crater lake or glacier peak
Professor Shawn Willsey made an interesting point about this lake: it's name is technically incorrect... It's not a crater, but a caldera. As this is the case, it should be called "Caldera lake"... Just sayin'.
Peace.
There’s a ton of misnomers. Caspian Sea is a lake, tons of hills named mountains, others
You are right.
I have, as of yet informally, named several locations myself. I always try to be accurate as to the topology and geology... usually, the places acquire a name due to a notable event that occurred there: "Bluegill Bend", "John's Pit", and "Torn Scrotum Slopes", to name a few.
peace.@@Fritzsche-ki6gv
BC plz let = history
Scary
I would worry about baker and 3 sisters
Or mount Mclaughlin. She is the youngest strato volcano in the valley and has been very quiet
Never mind "Crater Lake".....let's talk about (THE ELEPHANT IN THE ROOM). Using Crater Lake as the center of a clock face, look NORTH-EAST and you will see a HUGE circular feature. I've been asking about this structure for almost 50 years. How do you explain this ??????
Are you refering to Paulina peak?
I have also noticed it as I live about 70 miles north, It looks like an asteroid hit there
No....What we see is about 23 miles in diameter. Almost 5 times the diameter of Crater Lake.
If Honga Tonga can eruption how it did, Crater Lake could too under the right circumstances.
…yes?
Earth can be as giving as she can be IRATE!
Don’t go there without mosquito spray!!!
Didn't have a problem when I went down to swim. Usually see them in the surrounding zones though, especially Spring Creek down stream. Not so much when you canoe upstream though.
Its going to get real interesting real quick, if the outer rim ever collapses. RIP everything downstream all the way to the ocean.
Don't boil kettes
👍👍👍
I have NEVER heard this is active in all my life others in state yes this one NO!!
It is tho, facts don't care about feeling unfortunately
It isn't active.
It is.
@@xwiick Oh yes, silly me. I missed the enormous ash plume in the picture.
@@TheRealRedAceYes, silly you. Active does not mean 'erupting'. It means 'has erupted recently and there is no reason to think it won't erupt again'. In practice 'recently' is most often taken as since the end of the last ice age, but even if you take a much shorter period Mazama still qualifies. As the video states, there have been at least three eruptions since the caldera collapse, one of them producing Wizard Island.
@@davidcranstone9044 You're wrong. Active means active, as in fumaroles, quakes etc, not necessarily actually erupting. You are talking about 'dormant', which means doing nothing at the moment but will likely erupt again. Eg, Yellowstone is active, Vesuvius is dormant. Mazama is dormant.
You mean the lake in the crater of Volcano is experiencing volcanic activity? You must be kidding! How can this be? Stop talking through a toilet tube
I don’t think you know what the video is taking about