You are missing the numerous and clusters of old calderas from supervolcanic eruptions in the Miocene. The welded tuffs at Smith Rock is part of one. Called the Crooked River caldera.

Great video I live in San Francisco area so it’s a drive to Oregon but I am so enthralled with eastern Oregon- plan to revisit ! Smith rock and John Day area are amazing !

This talk ruled. 😎

Brilliant documentary, thankyou. Regarding Mazama, I was told that Crater Lake was named for Wizard Island's crater. Broken Top, Three-Fingered Jack, Belknap etc, I don't believe they are dead yet, the last eruptions are less then 10.000 years ago; remember Chaiten!

I first want to say, I was glad to find this video. I am surprised to see no other comments yet. I wanted to say, I think there is compelling evidences to that earthquakes of large magnitude definitely have a correlation to volcanism events. I think as we have watched and recorded significant deep quake events we see a spreading of equal to larger even quakes that spread out from that deep quake event along the plate boundaries. We see them sort of like stepping stone patterns that gradually follow a path along the plate boundaries. They flow a particular direction. This is not to say one quake is causing another or others..but the seismic forces that are pushing these deeper events creates an energy that keeps traveling and isbtransvered along the plate boundaries and weak points are then triggered to help release that energy. As the energy is transverse accross the plate boundaries it slowly of course loses some energy and thus they decrease the power magnitude released at that given weak point. We have seen this lately in some of the bigger deep quakes that have taken place not far from volcanoes. And not long after these large deep quake events volcanoes have erupted. Like we have seen in Indonesia. We had a very sets of deep quakes happen large happen not very far from the volcanoes and just days to a week or so we have seen these volcanoes go off. Two of which sent 50,000 foot blasts into our stratosphere. That was seismic pressure being pressed and transferred as energy across the plate boundaries. These volcanoes are on the plate boundaries. So they have to be effected. We also see similar happening all across the Pacific Northwest along the Cascades and even along the plate boundaries up in Alaska and the island chains there. Everytime we see earthquakes start a push of energy acrossl the plate boundaries in these stepping stone patterns, we often see volcanism of some sort occur along the plate boundaries as well. We watch as more significant magnitude quakes hit and more frequent energy from either small quakes to even slow slip and micro quakes occur that we will see the same small but frequent push from the magma chambers and other sources that will perturb small quakes first deep within a volcano and then shortly later a similar like quake at or near the top within the volcano. Watch Rainier or Hood, Shasta, Lassen or any of these large volcanoes. You will see the patterns clearly. This is not a pareidolia type pattern either, but a visable and observable pattern. I think a significantly very large quake near enough of a volcano could very well transfer enough energy to give a push into a magma chamber or other means and cause it to as well push and try to release the energy injected into it. Energy just does not stop. It does jot just go away. It has to go somewhere as we know in science it is a law of energy that it just does not get destroyed or go away or stop. How much energy would it take to push a North Pacific Cascade volcano to erupt or be triggered in some way??? Who knows?? But it seems unwise to just discredit it and say it can not or is unlikely when we see evidences all over the planet happening along the plate boundaries. Our plate boundaries is the Ring of fire. It is where all our volcanoes for the most part are formed... Not quite all but almost all...there are a few examples that are not. Where very deep magma has intruded up through the plate to create a volcano or caldera system that is still a very viable source for deep magma to once again intrude up and cause a devastating eruption. I like in Northern California . Just a short scenic drive from Shasta and the Lassen Volcanic Park, of which there is 37 volcanoes within it. I have hiked most of them.. Then there is Ashland and all the others near by that most have no idea are either dead volcanoes or have been inactive for so long most do not know they are not just a mountain gambit a volcano. I watch the quakes and follow them and then watch the Cascades as they pickup an increase of frequency and slight magnitude of small quakes as well. Always after we see quakes travel across the plate boundaries and fault zones. It is obviously clear that energy is being transferred across and being released ... no matter how small and slight through these weak points down below in the crust, these weak points called volcanoes. I have read several papers released by the Pacific Northwest institute in geological fields and volcanism and earthquake fields where they explain there is a tie between the two and are still coming to understanding what those are and why. As stated I think it is as simple as just energy being transferred. And the more complexities of it are still yet to be discovered or released. A few years ago while visiting up in the Lassen Volcanic southern park end there was a increase of seismic events happen off the west coast and a very large increase in the slow slip events in the Pacific Northwest. At that same time right after all that the volcanic mud pot regions of the southern park became extremely heated and active. They closed the park down. The mud pot that is near the south gate entrance along the highway boiled up and over the highway and bridge there... sending fountains of very hot mud and water and mineral materials like sulfur a good four or five feet in the air or higher. It went across the road and was even flying far enough to land on the other side ..that whole area became extremely hot even caused some minor road damage due to the ground becoming so hot. The area just a little ways away called Hell's Pot is a mud pot region with cat walks you could walk and observe the boiling mud pots. Sort of like areas at Yellowstone were you walk the catwalk areas to observe the hot spots. Those became extremely hot and boiled up and destroyed much of the cat walk areas and left them in dangerous conditions, So they closed those down and they still are not up and fully repaired for visitors yet.. Those areas are completely close in the winter anyways due to snow levels. We are talking snow levels so deep the visitors lodge is completely buried in snow depth. I have hiked the areas and visit them as often as I can. And at that period of time the pots were still fairly actively hot.and whole new mud pot areas had opened up and were boiling. .so they are needing to rebuild and reroute the old catwalk system a new and safer route for the public. Some of the water holes in the area increased in temperature and have stayed at a higher temperature than what they were previously before that sudden increase of temperature period. It shows that the entire area grew in heat temperatures and remained slightly hotter after and they still are today...even if only by a few degrees Fahrenheit. While Hiking up on Mount Lassen I have observed small tremors. This was only apparent by the small shifting of dirt and gravel on the mounting . Small enough you could not feel anything but the vibrations were enough you could see slight shifting vibrations in the soils or sand, ash and cinder like materials and the gravel in it. I was with family and when they saw it, it sort of scared them. But I let them know it happens all the time ..probably on a daily basis is not every couple days at most and they are what is called micro tremmors or micro quakes. So small we can jot feel them but the seismographs in the areas definitely picked them up. We only happened to be there to see vibration shifting of the loose materials on top. They probably get them several times a day. Sorry I digressed. ..lol But I think that if we are honest that quakes can and do very much have a direct correlation to nearby volcanism weak points. It only makes sense. When energy is transferred across and through an object ...no matter how large or small that energy looks for a weak point to escape. Volcanism points, cracks, fissures, faults and other points in the crust are obvious wealth points. So that energy will seek it if pushed that direction. Any deep weak points are obvious places the energy will seek because it is already being displaced from deep within. All you need to do is think how much energy there must be being pushed and released in order to cause earthquakes and and the plates to move and all of that. That is serious amounts of energy..enough to move an entire continental plate..Because that is surely a great amount of force and energy. ..it has to go somewhere and the weak points of volcanism is an easy place to release some of that energy. Scientifically the amount of push of force and energy in a 5.0 earthquake magnitude is equivalent to a small volcanic eruption of some few thousand to ten thousand foot blast. Maybe that is why when we see series of 5.0 and near to greater magnitudes we can often see that same and equal energy being released in volcanism events near by in all these other points on the the late boundaries. The reason that we do not see these happen like that on the Pacific Northwest areas of the Cascades is that we have all these fault zones and other breaks in the plates that allow for most of that energy to to be more easily diverted and transferred to be released first. They are far more closer to the more significant earthquake location points. That and if they are occurring on the fault areas it is easier for it to find other weak points along the faults to release first before it would need to travel across, under and through the plate to the subduction zone areas that are that plate boundaries that cause the Cascades in the first place.. Please share more content on volcanoes of the entire Cascades and Pacific Northwest. Thanks for the video.

Harmonic tremor lol. Well done.

These volcanoes are beautiful. The creation of God,. Is like no other.

when would the current cascade range become "ghost volcanoes?"

WOULD IT DO DAMAGE IN SOUTH FLORIDA....THANK YOU..

Looks like Taal volcano.

Left Out mt Lassen

Big pile of Rock 😂

HAARP