Quote from Lake Tahoe resident of ages past: “Nothing more refreshing than being hit by a 330 ft wall of water…clears the sinuses.”

@deborahferguson1163

Жыл бұрын

Heck, it clears even more than the sinuses!

@sweethome2363

Жыл бұрын

Would imagine

@tallpaul7130

Жыл бұрын

#TryingTooHardToBeFunnyAndNotSucceeding

@WouldntULikeToKnow.

11 ай бұрын

​@@tallpaul7130Speak for yourself. I liked it!

@gandfgandf5826

11 ай бұрын

And/ or "surf's up" 🏄‍♂️

This is really interesting as I grew up by Lac Leman in Switzerland, which was recently discovered to have undergone a similar event when a mountain collapsed into the lake. It is believed the mountain in question was Grammont, which today looks very much like half a mountain.

@GeologyHub

Жыл бұрын

I think I know of the specific example you are referring to. I might even cover that event in its own distinct video!

@chadsimmons6347

Жыл бұрын

While visiting a Rocky Mountain Park i noticed many huge boulders in the river, no warning, they just fall down

@PhilJonesIII

11 ай бұрын

Yes, apparently debris was found at the site of the church atop the hill in Old Geneva. That's a pretty scary thought. The lake funnels down toward Geneva so the city would be a particularly bad place to get caught. Then again, not so hot for places like Evian and Lausanne.

@Mrrogerthurman

11 ай бұрын

The Swiss are the world leaders into rock collapses into closed bodies of water as they have a lot to lose if that event repeats itself, and plenty of places where it could theoretically happen. Imagine Geneva facing up to it today.

I'm a native Californian, camped at Tahoe regularly always attending Ranger talks, never heard of this. Thanks for sharing!

@u4riahsc

11 ай бұрын

Me too and I’ve never heard of this, even family members who live in the area have never heard about it.

@perry92964

11 ай бұрын

that because its an AI generated story.

@Trancymind

11 ай бұрын

Ranger needs to get fired.

@GeologyHub

11 ай бұрын

@@perry92964nope, autism just made my voice sound awful.

@GeologyHub

11 ай бұрын

If you want to see more details I recommend reading the scientific papers linked in this video’s description!

I’ve long heard that the city of Geneva, and the surrounding towns on Lake Geneva in Switzerland and France, is the one of the most dangerous places in the world for a potentially catastrophic lake tsunami. I’ve also known for a long time that Lake Tahoe is a high risk location for a lake tsunami. However, I’ve never heard the exact geology behind the tsunami risk on Lake Tahoe. Thanks for educating us about this topic!

When I was little my father took us on a small boat along that Southern stretch of the bay. It is the most eerie drop-off deep into the waters that anyone can imagine almost vertically "straight down" when looking at it from calm waters. It is a memory seared into my mind because there was no "bottom" just a granite face that dropped seemingly forever.

Its fascinating how often this seems to happen in the world. Mountains near lakes are quite common.

One of the things that I like about your presentations is that when you move from what is the standard beliefs of geologists is that you always preface it with "I think," "I propose," or "I suggest."

I think a father and son rode that huge wave with their boat in Alaska when they were out fishing and survived.

@kennypitts4829

11 ай бұрын

Great tubin' bra!

@mkay1957

Ай бұрын

The wave carried them over a peninsula at the mouth of Lituya Bay, and they survived. People in a couple of other boats were not so lucky. There was a similar event in the Taan Fjord in Alaska in Oct. 2015. There are videos of the aftermath.

I'm so glad you're covering this! It's such a beautiful area all around and worthy of so many videos. Especially the desolation wilderness with its insane amount of lakes and sheer granite for miles all around. Some of the areas around the smaller lakes have barely a few inches of actual soil on the granite, but many unique species of plants can only be found there

@72marshflower15

Жыл бұрын

Shhh. Stop telling everyone..

@MaxWindshear

11 ай бұрын

Yes, yes! So beautiful!

Ok, i must admit, i had no idea just how big lake Tahoe is....now I understand:)

@clay8739

Жыл бұрын

Same. I had to pause it on the "one mile long boulder" thing to really let it sink in.

Various open pit mines and quarries around the world have experienced smaller scale versions of this type of event from landslides both unanticipated from sudden events and expected as a result of blasting.

Thanks! Megatsunamis are truly terrifying. Are you going to do a video on the Agulhas submarine slide? It might have moved over 20,000 cubic kilometers!

i love tahoe, i have spent my whole life visiting the lake, even lived there for a while. thank you for this video

A landslide like that isn't in any need of a specific trigger. They simply go when the fractures within have compromised the structure enough to release the weight held within. There are several other obvious slide locations surrounding that bay. A large slump event to the left and a more fluid slide to the right and into the bay itself. There's evidence there have been many slides at that location and appears ready for more at any time.

@perry92964

11 ай бұрын

you do realize this is an AI generated story.

@EmeraldBayMovies

10 ай бұрын

​@@perry92964Huh?

This happened soon after the last Ice Age ended and the mountains lost their local glaciers. This caused vertical isostatic movement which probably triggered the earthquake.

@randellgribben9772

11 ай бұрын

i love these arm chair experts

@arctic_haze

11 ай бұрын

@@randellgribben9772 Like me? Well, I actually have post-glacial isostatic movements in my teaching (I teach graduate students). Also the fact that in post-glacial period they seem to have triggered increased volcanic activity, and therefore presumably also an increased number of earthquakes.

@carelgoodheir692

11 ай бұрын

​@@arctic_haze To me, an armchair non-expert, that makes sense. I live in northern Scotland and isostatic rebound created raised beaches here. On the west of Jura there are even two levels of raised beach each with caves created by wave action now high and dry. It's hard to imagine an area the size of the Scottish Highlands popping up twenty+ feet relatively quickly without earthquakes.

Hey everyone. There's 3 fault lines around this lake that would help explain & contribute to this story. Also Mammoth mountain ski resort isn't far away from here & it's a dormant volcano that still trembles. Also this is a GLACIER lake, which is rare & not manmade. There wasn't a water outlet for sediment & water level limits like we have now either. All the basin trees are "babies" compared to what was originally there because the original trees were used for cabins & mines during the gold rush days. And least we not forget about the Donner Party with hundreds of feet of snow. Many factors through the years that shaped & evolved to create this stunning landmark. Even Mark Twain said it best.

@CFEF44AB1399978B0011

11 ай бұрын

Mammoth mountains on the other end of the state dude

@dethray1000

11 ай бұрын

@@CFEF44AB1399978B0011 no it is not--it is south less than 150 miles--find your self a map--i live in mammoth and consider tahoe backyard-sober up--both are considered very much eastern sierras

@valeriebright6285

11 ай бұрын

@CFEF44AB1399978B0011 Just because it's far away doesn't mean that everything ties into each other. Besides everything was different & smashed up against each other in those days. All things looked nothing like what we know today.

@chrisbyers6084

11 ай бұрын

"Hundreds of feet of snow". I missed that part in the Donner Party story.

Could you do an episode on the submerged trees in Fallen Leaf Lake nearby to lake tahoe?

@valeriebright6285

Жыл бұрын

I agree. Jack Custoe (I know I spelled it wrong) sent a sub down there, but it's so dark & merky.

@dethray1000

11 ай бұрын

thru out the sierras there are lakes with trees in the bottom--the sierras have gone as long as about 75+ years of total drought where trees started to go in bottom of lakes when the lake went dry--real climate change before humans were around...climate change caused by humans is a religious fantasy

@kme

11 ай бұрын

​@@valeriebright6285Jacques Cousteau?

Luckily for the viewers, this past geologic occurrence happened through no fault of their own! 😉

That's a pretty wide window on the date. Is there a reason why they can't pin ot down, or are thdy still working on it? Fascinating lake and region, but i think Tahoe is one of the most beautiful lakes. Enjoy your weekend! 🏞️💚✌️😎

@LeCharles07

Жыл бұрын

LOTS of variables. At some point it becomes entirely academic and way too much work to pin it down further.

For a possible future topic, would you consider covering the history of volcanism in the Tahoe region - specifically the events that lead to the creation of Lake Tahoe?

@valeriebright6285

11 ай бұрын

I'd like that too. I lived there for 25 years & never heard of this story.

@perry92964

11 ай бұрын

this is an AI generated story, im sure it can write one about volcanos

@GeologyHub

11 ай бұрын

Yes. I also have an older video that referenced and old very deep magmatic intrusion (lowermost crust, not anywhere near the surface) that once caused a few earthquakes. The western edge has a few remnant cinder cones and basalt lava flows >1 million years old.

Simply fascinating! Thank you for all of your amazing & diverse content! Love your content❤

Awesome!! I did a final presentation/paper on Lake Tahoe for my geomorphology class this past spring :) got an A+ lol

Wow I never knew any of this about Lake Tahoe! I've been to Tahoe so many times, and sat right there by the lake shore at South Lake and never knew that at one time there was a mega Tsunami that would have towered over the shoreline! This is fascinating. Thanks so much for this!

I know this area and never knew the geology of it!

Amazing. I have done past searches on this exact topic and came up blank every time. Thank you so much. (I think I probably searched for tsunamis rather than mega tsunamis. Reason: depth of the lake VS the tall mountains around it.)

I lived in this area for over 20 years. This is the first I have heard of this, but it's great to be able to piece this together!

Sharing to my local friends! Thank you for this!

Traveling to Tahoe with my parents in the early 70's was so much fun. The granite rock dotted with pine trees are what I remember the most. Just beautiful.

Do a video showing the formation of the Sierra Nevada's, San Joaquin Valley and Coastal Range in Central California. How old are those mountains and how did such a massive valley form?

Amazing!

Would love to see a video on the 2010 landslide and tsunami in Chehalis lake in BC. Fortunately all the campsites were closed for the season or there would have been a Major tragedy.

Thanks for this. I studied this event as part of a wider natural disasters environmental management university paper. Good to remind me after all those years!

You’re awesome. 👍🏻😀 The best Geologist on you tube.

Lake Tahoe is easily the most beautiful lake I personally been too, crystal clear blueish waters, sky air so crisp and clean, I hope we can keep that part pristine as could be.

My professor in Western Nevada College had done her thesis on this and the causes. She was an amazing professor, and it was so interesting! She fostered my rock hounding spirit!

Cool story! I’m a phd looking at landslides in Norway. I don’t know the glacial history in the area of Tahoe, but in Scandinavia and the alps there was an increase in landslide activity following the retreat of glaciers, and again at Holocene climatic optimum. There has been research suggesting tectonic activity is sensitive to climate change as well. Perhaps the timing of the earthquakes and landslide corresponds to a warming climate in the region?

@pansepot1490

11 ай бұрын

Yeah, first thing I thought was the melting at the end of the ice age was involved. I guess enormous piles of cobbles scraped and accumulated by the glaciers (I think the name is moraines) are more sensitive to earthquakes once the ice that bonded them together melts.

@dethray1000

11 ай бұрын

you mean when it gets spring/summer vrs fall winter? now that is climate change!! solar minimums/max has a huge impact on weather,earthquakes but you climate change people do not care what the facts are..

Similar to the large landslides off several Hawiian islands. The Cumbrey veheyha volcano has a giant crack that when it slides into the Atlantic will likely cause a 1,000 ft high tsunami along the US East coast. The idea this event was a combination of a fault & a quake is likely.❤

@AlbertoGonzalez..

11 ай бұрын

My first thought 💭

@Sam-ob4of

11 ай бұрын

*304,8m high tsunami

Very interesting! I never heard of this before

Very informative, thank you.

A man and his son were on a small fishing boat in Lituya Bay during the megatsunami. Both managed to survive, the boat somehow stayed afloat AND upright during all that chaos.

Awesome, thank you for sharing.

Lake Tahoe is so beautiful. I recommend the boat tour around the lake.

I always wondered why some Americans pronounce the word tsunami as sunami. The Oxford dictionary uses /tsuːˈnɑːmi/ as is closest to the original Japanese word. "Ts" similar to cats

@seaneendelong8065

Жыл бұрын

You'll find that 5h American norms of speech do not have a singular sound for ts used, particularly at the end of a word. Cats would commonly be T-Sss or even Tzz. That makes 5he Japanese ts sound so foreign to the palate and tongue that it is rephrased to the closest common sound of Sss for most. Myself I try, and it is more like a barely there short t followed by ss through the front teeth. Not at all sure if this is correct Japanese pronunciation though 💁

@jessepollard7132

11 ай бұрын

which is where I learned the proper pronunciation.

Awesome stuff, man. Thanks.

The same thing happened at my brothers cottage further down the lake and it did not affect him. I just checked the satellite view and it is still visible. When it slid down it was winter and it sent slabs of ice across the lake. It took out a cottage that was on a very small island like it was made of matchsticks and damaged many cottages across the way. I'm going to guess that the ice stopped it from spreading.

A father and son barely survived the one in Alaska they were on the water in a boat close enough to watch the landslide and they ended up going on a very intense boat ride

Please tell us at the beginning of the video where this lake is located. But thanks for the video as always!

Super interesting..thanks.

Now this would be a disaster!

This reminds me of a PBS episode about a tsunami in Lake Geneva. That could be a future topic.

Fascinating stuff!!

*more than 304,8m deep; some of which are more than 1,60934km across; up to 54,7177km downstream; several kilometers wide; at speeds of more than 160,9344km/h; 45,72m or less above the water line; more than 9,65606km inland; which was initially 518,16m high; an area of 233,09893km^2

I live in Reno and I come up to Tahoe often for day trips. I try not to think about a tsunami happening while I'm there.

I wonder how many lakes around the world we will find this has happened at.

Just watched the Myron Cook video about identifying landslide risks yesterday

Wow! Did not know any of this!

I love your sharing your own hypotheses. You don't have to be right every time but your opinions matter and are valuable.

great video.

Is the west lake tahoe fault even long enough to cause such a large earthquake? The little lake fault zone made the 2019 ridgecrest earthquakes, theorized to be some of the largest a fault that size is capable of generating, and that fault seems distinctly longer than the WLT fault.

@dethray1000

11 ай бұрын

a total of three quakes in about 6 months-ridgecrest,Mina,Nv--Lone Pine,Ca. about 6.5,felt them all living in Bishop back in 2019--lone pine which is where the largest quake to ever hit Cali happened in 1872--some say it was a 9.0--there is a mass grave site north of town--Lone Pine was wiped out and the sierras had massive slides for months

Interesting, thanks !

Looking at the Tahoe bathymetry I wonder, have the two remaining Lake Tahoe shelfs been seismically risk assessed? The only one I could find offhand says the large landslide events are rare compared to many small earthquakes in nearby faults (as you've noted), and calls for more data collection. "Seismic Hazard Investigation of Lake Tahoe Using New Remote Operated Submarine; Dr. Gordon Seitz, California Geological Survey, Menlo Park; March, 2014".

Im glad i wasnt there that day!!!

It would be helpful if you started each video with the country and location of each feature you talk about. There has been some videos where I have to Google the location of whatever volcano or feature you're talking about. Thanks!

at Lake Powell a cliff gave way and a tsunami washed over a bunch of people camping --many houseboats,boats got wiped out,many died

A lot of the Rockies have unstable valley sides because of all the glaciers during the last glacial age that created U-shaped valleys with their characteristic steep sides. Large landslides have been common throughout the Holocene. The triggers vary from place to place depending on site conditions.

Nitpick: you implied but did not show in your diagram the Truckee River becoming a cataract. There are some huge boulders at the head of the river, but they are more likely to be from the surrounding steep ridges. Still, it would be interesting to know if any of those boulders banked off the far side of the lake!

Given the large amount of lakes around the world it seems possible that this is not the only time this has accrued. This did in fact happen at a man made lake/dam in Italy with a devastating human toll.

I'm no patron on Patreon, but I'd still love to know how Rib Mountain formed in Wisconsin(the state in which I live). I once went there with my family when I was much younger

Always interesting..........

I live in NorCal, and only knew about this from a Geology course I took in college.

This is no joke. I have friends that are first repsonders in the area. They run scenarios about another event. Modeling shows tens of thousands would perish including in Reno to Pyramind Lake.

Could you please do a video on the Appalachian chain and it’s history. I live in western Pennsylvania and have wondered about the age of the surrounding mountains and hills.

Are there still areas along the edge of Lake Tahoe that are susceptible to large landslides?

I watched a documentary on large landslides, which included an interview with a survivor of the Lituya Bay incident, around twenty years ago. This pointed out that large oceanic, unstable, volcanic islands are particularly prone to this problem; as evidenced by the sea-floor around the Hawaiian Islands, and La Palma, in the Canaries. How deep is Lake Tahoe: because that, surely, is a factor in how much water may be displaced by such an incident?

i have a video idea. how did the Scottish highland faultlines form?, there about five to ten lines depending on what map you look at

One video I would like to see is on the Sierra Nevada mountains. As I understand, they were formed around 80 millions years ago. They were eroded down to a maximum height of maybe 3,000 (?) feet. Then, around 10 million years ago, they eastern part tilted upward, reaching a height of 15,000 feet, which may have matched the original height 80 million years ago. Question: What caused this uplift starting 10 million years ago? How long did it take to reach a height of 15,000 feet? Is there a theory that is generally accepted by most geologists on this?

How about the now quiescent Nemaha anticline in e. central KS ?

So very interesting

Interesting that the estimated date, minus the 4500, is about 12000 years ago, roughly what is estimated for the Younger Dryas event to the north of this. Just a thought...

Imagine you were only 320 ft up the opposite shore line. Dang would that hug or not?

Would it be possible for an earthquake to connect the Slaton Sea with the Sea of Cortez?

@dethray1000

11 ай бұрын

how about we just build a canal and make it happen--there is a canal all the way to socal from lake shasta--also from from the mammoth lakes area(bishop) to socal--salton sea would be awesome like it used to be

I was just in Lake Tahoe last week, and I thought the 3 foot waves were big!

@Sam-ob4of

11 ай бұрын

91,44cm waves

12,000 yrs ago puts it in line with the solar harmonic of 12,000 yrs ago. Earth has regular cataclysms every 6,000 yrs.

Thank you for your highly interesting videos! Where is this beautyful bay at 3:53?

@jfowler7604

11 ай бұрын

That is Emerald Bay on the southwest side of the lake. It's a major tourist attraction with hiking trails and campgrounds in close proximity.

@antondichtl6557

11 ай бұрын

@@jfowler7604 Thank you!

Please create a video on the nearby prehistoric lake- Lake Pyramid

this voice holy sh**. "that last thing u want on ur burger king burger"

Richmond Beach Saltwater Park in north seattle looks like a landslide area that could have created an ancient Tsunami in Puget Sound.. it has a very tall sandy bluff. Much of Puget sound is surrounded by many sandy bluffs.. these slopes could be very unstable and could make and maybe could have already created ancient tsunamis in puget sound region.. Actually from Olympia WA to Skagway AK.

Can you explain features like Ardnamurchan.

Does the time frame for this tsunami coincide with the Younger Dryas event?

Imagine being in your tribe 16k years ago, just chillin on the beach tanning when all of a sudden...

I wish Geology was more exact.. It's not. They have nearly 5000 gap of time frame when this occurred? You'd think they could do better by now.

@jessepollard7132

11 ай бұрын

nope. Radiocarbon dating cannot be more precise.

Ben Cartwright and sons lived near lake Tahoe. Their land bordered it.

Where is lake Tahoe? Later on in the video you say in California but where abouts?

Wow beach front property on Gardner mountain. 😮

The person who down-ticked this video had a house on Lake Tahoe 15,000 years ago...

From my understanding, Tahoe could undergo another similar event, due to with two other unstable areas on the west shore....just don't know wnen. My home is in that flat south shore area...

Local Indian lore from that time period describes "Like totally awesome surfing, dude..." which may well be describing this particular event.

Water had to be free of ice sheet for waves that high to form. Landslide had to be closer to 12,000 than 21,000 years ago.

the date range proposed in this video overlaps with the global catastrophy that was the younger dryas event where some giant celestial object, or many of them collided with earth and likely generated global earthquakes, ringing the earths crust like a bell.

Hey hey! Mckinney bay!