Silki provides a lucid synthesis of seismic data that effectively bridges the gap between technical geological monitoring and public risk awareness. This analysis grounds the "Big One" narrative in the rigorous reality of tectonic stress loading without succumbing to mere sensationalism.
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‼️M5.0 HITS CASCADIA FAULT during ELEVATED risk for BIG ONE as ETS Swarm happening in the SAME areaAdded:
You have to check this out. Magnitude 5 or 4.8 at the Cascadia subduction zone during a time where the Cascadia ETSs is going on. And if you see where the location of the current ETSs is, it's exactly the same area, Crescent City.
So, let me explain this just in a second. Slow slip events, ETSs, in Cascadia, are swarms of earthquakes along the Cascadia subduction zone, usually on land. Happens roughly every 13 to 16 months. Some say that because of that, like every 14 months. Um, they usually last days to a few weeks and usually they're spread out. So, we've seen last year a lot around the Washington area, Olympia, Tacoma, Seattle area, and a little bit further up. So it's not perfectly regular like a calendar calendar and it can vary by location. So we have like northern Cascadia, Vancouver Island, Washington often around that famous 14month cycle.
And I'm concerned about the location of that 5.0 or 4.8 because this is the Cascadia fault. I'll mention in a second what the other red line, the zigzag line is that you see there. So, central, southern Cascadia, Oregon, Northern California, this is where we have it going on right now. It can behave a little bit different with smaller and more patchy tremor episodes.
And that's what we seem to see here. So, and during that time, the risk for a Cascadia fault rupture is elevated.
That's why this dot there concerns me right now a little bit. So, Cascadia has this strange slow motion slip cycle.
This is what the Pacific Seismic Network, you see that here about every 14 month parts of a deeper fault quietly slip for days. And I say quietly because it's it's small earthquakes. People do not feel it, but the instruments detect the tremor as you can see here. And that matters because um this silent slip happens deeper than the locked zone.
That is important. It's right next to the part of Cascadia that can produce that giant earthquake, mega thrust earthquake, magnitude 9 plus and tsunami. So I want to say ETSs is normal for Cascadia. That alone doesn't worry us, right? It does not mean the big one's happening right now, but it's one of the key ways that the scientists watch the stress moving through this subduction zone. And again, risk elevated. We need to look into this guys.
I want you to have a look at this at the location of this earthquake. It was originally a 5.0 earthquake. Now it has been downgraded to 4.8 8 and it's very shallow 2.5 kilometers. So that's less than 2 miles at depth. And usually when we're getting close to California in the area of Crescent City and we're we're like not super concerned if California has these earthquakes, but look at that location.
You see the red lines here in this image. And this is I only chose now one day magnitude 2.5 or larger. So, this is the earthquake, guys. And I'm telling you, this thing here, this thing here is the Cascadia fault. And when I saw this, I was like, I hope Shizz is not going to hit the fizzy because I am sitting at the Cascadia fault um in a building right now where it's probably not so ideal to be in when the big one hits.
So, we're talking about for those of you who don't know, but I'm sure you do because you're watching my channel on a regular basis. You are the the freaks that know, I know that Cascadia fault magnitude 9 plus the earthquake that will destroy the Pacific Northwest.
We're talking about Northern California.
Um, we're talking about western Oregon, Western Washington, Western British Columbia in Canada and Vancouver Island.
So this thing will be the biggest disaster that the west coast has ever ever seen. And interesting location here at the Cascadia fault with this earthquake is also that recent studies have reported about this multiple times have now proven that the Cascadia fault and the San Andreas fault who kind of meet in this area have triggered each other in the past. So, let's have a look at this because I really don't like this. And I have reported quite a bit about earthquakes in that area as well recently. We'll get to that too because there's something going on in Nevada as well. But if I go to like um let's go to 30 days back. So, it doesn't show us anything. It shows us the big ones here in Silver Springs. That's Nevada. I want to talk about that. Yeah. But let's go back seven days. Maybe I can see it then. Um, yeah. So, there's nothing else, right? Usually the earthquakes, and that's the interesting thing.
Usually the earthquakes are not really along the Cascadia fault, right? They are usually here on land. And we have an event going on right now that is happening on a regular basis um on the West Coast. It's like an event where we have smaller earthquake swarms in this area here, like a slip and slide event. Um, and during that time, the risk for a major earthquake at the Cascadia fault is elevated. So, when we see an earthquake like this here, this is more concerning. So, um, I want to show you something else here. If we go to 30 days back magnitude 2.5, you see the white dots. You see the the clusters here at this area. So what is this area?
This is not related to the Cascadia fault. I want to tell you this. These earthquakes here, they're not related to the Cascadia fault. So we don't have to worry. Of course, if there's bigger ones, every shaking there is can of course transfer some shaking. And if something is close to rupture, it can have an influence, but it's not that likely here. So, we have down there if we look, we do have we have down there if we look the Gorda plate and the Juan the Fuka plate, right? So, this is a different area that keeps shaking on a regular basis. So, we should not freak out about that. But that point here, I'm breathing a little bit. Um, do I see the shizzy coming close to the fizzy?
No, not yet. I'm not completely in panic yet, but it is definitely something that we need to have a closer look at. And since we're looking already, um, I put that video on the end screen. Not many of you have seen that video yet. We have three earthquake swarms in Nevada. um in an interesting place. So here, here and here near top secret sites, we have earthquakes and we have big earthquakes.
I'm talking magnitude five and higher.
So that's in the end screen. You have to see that. Is that a coincidence? But now we're coming here. You see, we're going back 30 days, all magnitudes.
There is not much. There is this stuff going on here and we know here in Eureka we have other fault lines. We have other plates. We have other tectonic systems.
Triple Mendosino triple junction that is now actually a five junction. How do you say like five flat junction? I reported about that as well. If you're interested in that, search for that on my channel.
Maybe I'll put it in the end screen. But here, yeah, there was a smaller one here, but still this is a little bit out of normal, right?
So, yes, that 4.8 is west southwest of Crescent City. Crescent City, very flat area. It's a beautiful area but they are well how can I say prone to have the shizzy hit the fizzy with tsunamis even you know if Kamchatka you can see the waves coming they had some damage at their port not huge waves but they did have that in the past and they can have it again because it is so flat but southern Cascadia Mendoscino triple 5 junction region um we have to be careful careful with the wording. Um, if it is near the Cascadia system, it does not mean automatically that the Cascadia mega thrust is rupturing.
Please, let's not say that. But the quake is offshore of Northern California, west southwest of Crescent City, very very close to the complicated plate boundary area where we do have the Gorda plate, the Huaf Fuka system, the Pacific plate and the North American plate interact. Um the USGS describes the Menosino triple junction as the place where the Pacific, the North American and the Honda Fuka plates meet and we know now that they are even more ruptured so that we have actually five plates. So in this southern part what we see that the Gorda plate is basically the southern part of the Ju Fuka plate system. Um the depth 2.5 kilometers 1.5 miles it's very shallow. Um, so if we deal with offshore quakes offshore of Northern California, um, that could have several possible earthquake sources.
Could it be that this is maybe a gorder plate internal fault? Could it be that it is the Menosino fracture zone or is it really the Cascadia subduction zone?
I mean, smaller faults around the triple or five junction. um are there a shallow magnitude 4.8 eight there does not mean the full Cascadia fault is starting to rupture but during that slip event that is happening at the Cascadia fault right now and the risk is elevated I'm raising my eyebrow and I'm really really raising it guys um full margin magnitude 9 plus cascadia rupture has about a 10% chance in the next 50 years so this doesn't mean after 50 years within the next 50 years. So the USGS probability summary says that was for 2025. The national seismic hazard model they say it's around a 500year recurrence interval for a full margin magnitude 9, but it could be something like 350 years, right? So 10% chance in 50 years. Some say it's it's a higher probability within the next 30 years. So it depends how you really set that time frame. Is it a 500year cycle?
Is it a 350ear cycle? Is it is it even less than that? Right. Uh for a broader Cascadia mega thrust event, including smaller or partial ruptures, um the agencies often site higher numbers. The Oregon Emergency Management says scientists estimate about a 37% chance of a magnitude 7.1 plus mega thrust earthquake in the Cascadia fault zone in the next 50 years. So now we are at 37% in the next 50 years. Not in 50 years. That is high guys. It this could be our lifetime. So big one.
It can happen any day. But why is this 4.8 shallow? Shallow depth offshore here can happen because the area is full of upper crust and oceanic plate faults. So if this is the southern wanduka ga plate that area is being squeezed, it's bent, it's fractured and it's pulled around the mendoscino triple 5 junction. So there is a study that has been done um by the USGS describes this region as more complex than the simple like three plate model. I've mentioned that right hidden pieces low frequency earthquakes um and there is a lot of motion near the Gorda plate um and the and the other plates. So the oceanic plate is not sliding smoothly like one flat sheet.
It's very cracked. It's being compressed. It's being dragged beneath North America and near Cape Mendosino, near Crescent City, Eureka, several plate boundaries meet and fight each other. So that yes, that can produce shallow earthquake activity. So is shallow more dangerous than a deep earthquake, especially when we're dealing with the Cascadia subduction zone. Um, when it comes to shaking, if you feel that on land, yes, shallow is usually more dangerous locally, but this one was offshore.
Shallow earthquake, we know that, releases energy closer to the surface.
So, there's basically less rock between the rupture and the people, buildings.
So, that can mean stronger shaking near the epicenter compared with a deeper quake of the same magnitude. So for a tsunami risk of the Cascadia fault or for that shoreline it depends on the fault type right if we have a shallow offshore quake that is not automatically at tsunami maker tsunami usually needs vertical movement off the seafloor um especially on a large thrust fault like in the Japan like tohoku earthquake shallow strike slip quake like the San Andreas fault inside the gorda plate or along a fracture zone may shake shake the region but often just not lift enough seafloor to create a tsunami. I don't think this one creates a tsunami.
Um but a mega thrust rupture on the Cascadia subduction zone is different.
That is where the Juand Fuka Gua plate is locked locked and loaded against the North American plate and then it suddenly slips lifting and dropping huge sections of the seafloor. That is the nightmare. tsunami mechanism and it will reach the west coast within 8 to 15 minutes. So if you're there along the coast, run. Do not turn around. I have to say sadly, do not help anybody. Run.
Get to higher ground as quickly as you can. The scary part here of the magnitude 4.8 is not the 4.8 by itself.
It's the location. It's the location. It is the same tectonic neighborhood where the Cascadia subduction zone ends or begins. No, depends on where you look at it. The San Andreas system begins and the Gorder plate is being crushed and forced beneath North America. So shizzy can really hit the fizzy. The shizzy can start in this area and then travel along the San Andreas fault, along the Cascadia fault into the other faults.
So, we will have to wait and see what this is. And uh guys, I want you to look at that while I'm talking. We just had a magnitude 3.4 along the San Andreas fault. I'm not saying this is related. I definitely do not think that this is related, but I mean, we're just talking about both of them triggering each other, right? And then we do have that here in Los Angeles. Um, and if we go further up, um, at the end basically of the San Andreas fault, and, uh, we have another swarm in this area. We've talked about this also, um, between Caldwell Pines and Castle Rock Springs. Uh, this would make the video too long if we talk about all of them, but we see here, this is basically northern California. This is where the San Andreas fault basically is merging with everything. We also had a 2.5 there just basically today. So, and then this right this to be determined. I have to say stay safe, be prepared. And guys, you have to check out what else is happening. I just released a video. I don't even want to say Darvin award because some of them are not there anymore to receive that award. This time it has really happened.
Hikers got too close again and unfortunately the outcome wasn't good.
Dukono volcano guys check it out. I see you there in a second.
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