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Watching this nearly fifteen years ...

Great video! Thanks for posting.

So easy to listen to and great teaching Ability

"Groundbreaking science"- no pun intended. Interesting. Thanks.

Wow, those 2008 computer graphics blew my mind.

Excellent presentation with a wealth of fault information.

We get some small quakes here in west Texas west and northwest of where I live. I don't own any property out there, so I know it's not my fault!

guess i should go fly fishing in my fav. streams in the owens valley before its too late.. this was a very good program... and when i am at tahoe fly fishing the area... i wont wear my waders.. i plan to wear my track shoes.. to run as fast as i can if i feel a big quake

It may seem that it's easier to rip a piece of paper straight along it... until you don't have a pair of scissors and you want a straight cut so you try ripping it that way. While it may seem straight when you are looking to see how a fault like the San Andreas has ripped the crust, if you were actually trying to get a straight line when you went to rip the paper, it's unlikely you'd get it without some pre-rip modifications to the paper. The reason I say this is because I've more often wanted to actually make a straight rip in a piece of paper than not and have been frequently frustrated by the results. Creating a fold in the paper where you want to rip it helps, but doesn't guarantee the straight rip that I have frequently tried to achieve. Constraining one side along a straight edge of a harder material like a ruler or the edge of the table to coax the rip to be straight works a little better, but it still does not eliminate the annoyingly frequent meandering rips in the paper one was trying really hard to rip in a straight line. Why is it hard to rip a piece of paper in a straight line if that's what you're trying to do? I am personally of the opinion that various virtually imperceptible differences in the strength of the paper are the cause of those damn rips that veer off in an ugly way and prevent a person from actually creating a straight rip. Maybe the pulp is slightly thicker in the area or the wood grains are oriented in a somewhat perpendicular way to the intended path of the rip. Whatever the case, when the rip hits this asperity, it changes direction and makes an ugly rip that veers off to one side or another. I have personally never ever been able to rip a piece of paper without encounters at least one, and usually many more, of these places in which the rip gets all fucked up. I don't know if everyone notices this kind of thing but, being somewhat of a perfectionist, this kind of thing pisses me off and makes me wish that I hadn't been lazy and had used scissors (which also don't always cut a perfectly straight line unless the paper isn't as long as the scissor blades). I would say that any rip in anything follows the path of least resistance to the direction of the force that is ripping it apart, but I only took a handful of geology classes and just one year of physics to get my biology degree.

interesting, but the question of what california will look like in 10 million years was not really answered. there was reference to the sea of cortez being extended northward, but no supporting graphics were shown.

Awesome information. Great work

Thank You!!! For this confirmation of what I've being thiking since the Hector Mine event!! The Ridgecrest/China Lake event just makes it more clear, I've been watching Nick Zenter's channel and looking for more info to affirm my thoughts of the San Andreas moving to the eastern Sierra Nevada face and now with Dr. Graham Kent's presentation, this has been solidified! I'm a Fullerton boy transferred to Palm Springs and living in Morongo Valley on top of the Morongo fault near the junction with the Pinto Mountain fault. Thank You Again for allowing him to share his knowledge for all to see.

How about that! Ridgecrest/Trona 7.1 earthquake July 4, 2019 AND CONTINUING TODAY.

The alignment of our faults in SoCal look kind of like a drill bit. I wonder if some part of the area is going to spin around like blocks of the ground that have done something similar to the north.

Fascinating... riveting... in spite of what others comment here.

Neat talk.

Maybe I am wrong, but I was thinking the Pacific Tectonic Plate is moving about 2 inches per year along the American Tectonic Plate, and in about 300 my San Diego will be near Oakland. But, now let's say there will be a break along the Elsinore Fault and Oceanside, CA will rotate counterclockwise to have a south-facing beach and great surf. I'm 66 years old and still fascinated by geology. My first ride on the Palm Springs Arial Tramway in 1972, was down from the top, and the bent rock that has been lifted from depth was a spectacular sight. In 1977, I flew above the San Andreas Fault in a Navy helicopter (Hollywood sign to China Lake) and was awed by the "Crack in the World". I've since learned that granite is ancient magma. Meaning there was a mile or more erodible material above today's exposed granite, which we now see about 2-miles deep under Ontario, CA. Thumbs Up and Shared.

They left out three Faults: My Fault. Your Fault, and Not My Fault.

thank you

Sand andreas is my fault sorry guys.. Haha i would have a beer with Kent anyday. Seems like a solid dude. Aloha from lake tahoe .. Squaw Valley acadamy alumni

Maybe I should buy property in Lone Pine and have some nice seashore property.

Very nice report.

Excellent video.

That's crazy that this is published just months before the Mogul-Somersett earthquake sequence occurred. (Reno area, spring 2008) Would the rifting he's talking about cause earthquakes like those? Makes sense to me.

I disagree with the good Doctor (with all due respect) about the "spreading ridge" dying upon subduction. He either ignores or doesn't consider the divergent mantle upwelling associated with it, and that neither he nor anyone else fully understands enough to dismiss its role in plate tectonics. Since the divergent mantle upwelling origins are deep mantle, it's already too far under the over-riding plate to subduct; hell, look at SoCal and Baja, they over-rode the East Pacific Rise (South Farallon Spreading Ridge) and its mantle divergent upwelling (nearly everyone tends to not consider,) and subducted the ridge. The divergent upwelling didn't "die," though its tell-tale presence in the form of the ridge did disappear under the North American plate; but the divergent nature of the upwelling far below the former ridge and the over-riding plate continued its divergent affects under the over-riding plate, and is still rifting Baja and SoCal. What does he think the mechanism is under the major SoCal faults, rifts and extensions? The divergent mantle upwelling may eventually die, but it's so massive, it lives on for millions of years, but a blink of an eye in geologic time. The Farallon lives on under the continent.

Wyoming has a 'Geologic History of Wyoming', why don't we? Can we get a version of that for California? More of the general statewide geology and a little more examination of how the state came to its present state, both in position and altitudes of the mountain ranges. Love the earthquake and plate tectonics subject and understand those drive everything I requested. But creation of the central valley, I know ugh plain old dirt no rocks, is interesting! It's so much dirt and it's so deep! and we get peaches and stuff from it that seriously matter when you're hungry, but not then when you go back to the geology. Just an overall 'how it got this way' at the level of a scientific public lecture, without the utterly annoying music and sound effects from entities like national geographic. Some actual data, light data as it's a public lecture not a society presentation, but some! Feel free to give the speaker more time or even have a joint presentation from various experts in different regional geology, maybe south to north since North America overran the seafloor spreading and started the transform faulting to the south, and then a wrap up session. No, just because its south to north you may not end with a triple junction rupture of the Cascadia zone, Mendocino Rift Zone, and San Andreas faults. This is the 'how we got to be so awesome with all this landscape!' not the 'how we're all going to die!' presentation. Please? Pretty please? I am sort of embarrassed Wyoming has a cool video about the entire state's geology and we dont :/ Geologists of Jackson Hole have a full hour and 17 minutes of interesting Wyoming, are you going to let them just walk all over you like that? They aren't even a university and they are sort of crushing you guys! Crushing all of us! Oh forget about California, they only care 57 minutes and only about how dramatic your horrible death from Dwayne Johnson saving someone else will be!

Wow, that was just incrediable, only wish is that the film would have better resolution. very fuzzy

At the right hand of a triple point junction you will have rifting. Triple point Cape Mendocino down to Baja California.

Graham Kent gave this talk on Valentine's day (2005?)

How could the San Andreas Fault change it's course to the Eastern California shear zone when the entire Mojave block through which those faults would have to establish themselves is itself rotating clockwise? The orientation of those faults trying to establish themselves would change so that they would no longer be able to relieve stress. It would be easier to push up new mountains as North America moves West which is probably why we have the big bend/transverse ranges in the first place. In fact,if anything,the plate boundary is moving West,not East. For example,the San Jacinto Fault is younger than the San Andreas & it's slip rate seems to be increasing and it is West of the San Andreas Fault.

At 15:23 - "When these ridges [Farallon] get close to the subduction zone they actually die" . That is not a reasonable assumption. The plumes feeding them are 100s miles down. What is to say they don't continue under the overriding plate? It would help to explain Arizona's volcanism...

Nice

very interesting - perhaps - but I could not stay after roughly 20 "uhms" in three minutes. A course in public speaking is indicated.

Obviously we are very grateful for the lecture / talk. It was great, especially the 3D under water models. ( " PLEASE " ) remember one of the reasons, you have lectures like this is to gather community support for your work, "very important". With that in mind, you want to have as large an audience as possible, for maximum effect, and dissemination of seismic data . (" Please" ) go down to Home Depot and by yourself a ( dowel ) like the one old teachers used to point to the critical areas on the graphics, because the KZfaq audience etc. "can't see the damned laser pointer". We miss about 1/3 to1/2 of what is being described, because of that, so your losing audience. It's more important than you think. Maybe if you try real hard you can find a real antique pointer, with the eyelet screw on one end to hang it up next tot the chalk board, or your new "sissy" white board, and a little pointy rubber tip on the other end. They are great for beating on uncooperative students, and audience members. Thanks.

Commifornia: exists “panik!!” Commifornia: sinks “kalm!”

Our species of human will not be around in 10 million years.

A quick FYI: "sierra" is never used in the plural when referring to a single range. "Sierra" means "saw" in Spanish and is used to refer to a range of mountains that when viewed from the side appear as a jagged edge. The Sierra Nevada should never be called "the Sierras." Also, the 'h' in bahía is silent.

Yes, thank you, wonderful information, however I do think you're pushing it suggesting 'I don't see a plane' , I mean agreed, but by that metric, even the more defined faults are hardly Platonic planes.

The text says he's Kent Graham! WTF?

Ratio of ads to lecture.

@lordpatrice i care damn it

What? Tahoe doesn't have beaches now?

Quick, easy and very reliable IQ test. If someone says "California's gonna fall into the ocean" you have a graduate of special ed.

How much did they pay him to secure the real Real Estate of Ca.?

15:47

17:50 He might look up the 3 New Madrid Quakes (1811-1812) in the central states (Mississippi Valley) and the 1964 Alaskan Quake.

Learn to swim

We live in what is called the Pleistocene Ice Age which began some 2.8 million years ago. Melt both ice caps and you still would not reach the Sierra's for "beachfront property". The sliver of geologic time we live in today is called the Holocene Epoch, and it is the 11,723 years since we melted our way out of the Wisconsin Glacial. Problem is the Holocene is pretty much kaput as only 1 of the last 10 interglacials has lasted more than half a precession cycle (which varies between 9,500 and 11,500 years. So far, we only know of one thing, and one thing only, which can ameliorate glacial inception. Do you know what that is? Greenhouse gases, of all things.

I like futuristic geology problem is we have less than 50 years...

Duthunsence

Hahaha, I hope you're not serious. Scientists say that the sun won't start swelling for another 2 billion years. That's about when the oceans will boil. And It will probably be another 5 billion years until the sun has a chance of hitting the Earth and swallowing it. Sorry, but the Earth is going to last for billions of years to come.

I’m sure this is a nice man , very intelligent, but how do so many smart people believe when they are taught the 50 million or billions of years old. The earth is not that old.

I know where im buying land

10 million years is quite interesting but something more current would be a little more... telling most of us know from general knowledge California is going to slip away eventually

57 minutes.....never mind.

When we look at the many horizontal strata that we find everywhere on our planet, we see clearly the effect of a repeating natural event. These strata are caused by a regularly recurring disaster. These disasters are mentioned in ancient books as the Mahabharata from India and the Popol Vuh from the Maya and others. They tell us about a cycle of seven disasters that separate world eras. Regularly recurring disasters can certainly not been caused by asteroid impacts or volcanic eruptions. The only possible cause can be another celestial body, most likely a planet, that orbits our sun in an eccentric orbit. Then it is near the sun for only a short period and after the crossing it runs into the universe for a long time. Planet 9 exists, but seems to be invisible. These disasters cause a huge tidal wave of seawater that is pulled over the earth. At the end it covers the earth with a layer of mud, a mix of sand, clay, fossils from sea and land animals and meteors. They also create a cycle of civilizations. To learn much more about the cycle of recurring floods and its timeline, the recreation of civilizations and ancient high technology, read the eBook: "Planet 9 = Nibiru". You can read it nicely on any computer, tablet or smartphone. Search for: invisible nibiru 9

Seriously?!? 10 ads in a 1 hour video?? GTF!!!

neither do i. sorry! 57min?nope

Whos cares we wont be there to see it, and probably california will be at the bottom of the sea.

The Earth itself will be dead in 10 million years. Nothing will be here except a giant rock that will be consumed by our Star.

Sir, I find your "intellectual" presentation, with your "cartoons", very insulting. It was probably meant to illicit a laugh or two from the ignorant audience. Were you talking to kindergarteners, or just paid by your sponsors, beautiful pictures notwithstanding? If you were going to mention the Pacific Northwest area of our Country, you should've mentioned Siletzia. The ridges adjoined to this area is because of the Juan de Fuca Plate subducting under the North American Plate, which is traveling Southwesterly itself. The Cascadia volcano region of the Pacific Northwest is because of a "hotspot" traveling Northeasterly, or better stated, our North America Plate is, because of plate tectonics, "moving" Southwesterly, where, now, our Yellowstone National Park is located. This movement is nowhere close to the San Andreas Fault system, which is a vertical tear of our earth. And, the only "good thing" to say about Baja California, is that because of the San Andreas and plate tectonics, BC will probably "tear-off" from its present location, and "travel" northwesterly, and adjoin either to Northwestern Canada, or maybe even Alaska. Make these points evident in your funny lecture, and to the ignorant attendee(s).