in a sense it's mind blowing that we had images of stars being born, black holes, cells dividing etc before earthquake faults in motion. Like how the process of how they happen have only been inferred until now
Thanks, first watch all I saw was the driveway crack appear. Second pass could be mistaken for a parallax effect as the entire background shifts forward!
So, I recommend seeing it in 3 passes. 1st pass, see the right 1/3rd area of the video. It shows the 2 sides moving. Then see the middle 1/3rd area of the video. It shows both the movement and the rupture in the ground. Then see the left 1/3rd area of the video. It shows the rupture on the ground clearly.
By the discussions I've had with surveyors in my country (Sweden), any coordinate descriptions of properties are deferred to the physical markers in the ground (cairns for older property, metal stakes for newer ones). This would only be an issue in properties that have never been surveyed (and marked) at all.
Straight borders might become crooked if they cross the crack though.
I am also in Sweden, and learned recently that a large part of my property seems to actually belong to the neighbour according to the online map! But there is a page in the relevant authority's website which clarifies that the online map can be 10s of meters off (in Swedish): https://www.lantmateriet.se/sv/kartor/vara-karttjanster/Visa...
There, it even explains some history and methodology for defining the borders. Mostly, they are defined by physical markers that hopefully the original surveryors left on the ground. I found a couple around my property (which is on hills so it's likely difficult to mark properly on a map from above) and it seems the borders are actually almost correct. As my fences have been up for over 20 years in the same location, I believe they also count now as de-facto borders now!
People lose property to coastal erosion all the time. Here there is a scheme to give some people replacement land further inland I think in some areas.
The natives lost something, to be sure, but I'm not sure it was property. Property is created when you kick everyone else out. I assume that's the rationale behind "property is theft," it used to be everybody's and now it's yours.
You're correct. They didn't lose property as they had no legal concept of ownership. Instead they lost their homes, their culture, and their lives. How lucky for them!
The level of respect is per treaty, a blanket statement cant be corroborated as many are not respected or dont have consensus amongst the affected people of being respected
Area doesn't just disappear. I suppose that depending on what's on the land, your area might have a few more potatoes from your northern neighbors and fewer carrots you generously gifted to your southern neighbors.
You could alternatively just deal with your new jagged plot.
Worst case scenario, you're now the owner of the new Turkish Canyon.
I don’t think there’s a universally accepted solution but in California it would be up to the state to figure it out. It would be a great time to be a Real Estate lawyer after a quake there.
Essentially one affected party comes up with a proposed solution, files paperwork with the court, and then all the rest of the affected parties get together (under court supervision) to make whatever changes are necessary until the solution is fair. If the court agrees that it is a fair solution, it becomes final.
4.x l to 5.x earthquakes are still happening a few times a week and the area couldn't recover from disaster. last week, one 4 stories building next to my friend house collapsed,near Mandalay.
It's always been active. The Sagaing fault is a plate boundary. You're seeing the "side" of the Indian subcontinent slamming northward into the Eurasian plate.
A previous discussion of the M7.7 quake in Burma/Myanmar from March 28, 2025 was provided by Sean Wilsey. He explained the earthquake and context and discussed the CCTV footage around 6:30 https://youtu.be/CfKFK4-HNmk
It's the video of the fault line itself fracturing that's so interesting.
We know where the fault lines are, so we generally avoid building anything major near them because... well earthquakes. Hence no other videos of actual fault line fractures (vs general street ones).
Yep. Had a pretty significant renovation/retrofit in 2010-2012 ago to address the fact that the fault had (among other things) caused some walls to start coming apart.
Terrifying. I program automated vibration analysis for blasting, and a very powerful explosive blast will feature particle velocities (the direct corollary for power) in the single-digit in/s range (~0.02-0.13 m/s) . This peak particle velocity is 20-150x higher than the peaks we see from the most powerful blasts we measure, if they're at all qualitatively comparable.
And of course, the earthquake energy source is many magnitudes larger and much, much further away, deep in the crust, with the wavefront already having passed through miles of solid rock. We measure blasts from at most a few hundred meters away.
This is the solid particles in the ground moving in place. As the wave passes through, any given volume of ground is displaced somewhat. In a balanced low-intensity wave, the soil or rock gets jostled around a bit. In a high-intensity balanced wave, the ground is yanked back and forth, potentially damaging foundations or buildings above the foundation. Particles will be displaced, but not permanently, with a net of 0.
In an unbalanced wave, the earth is permanently displaced in a particular direction. We can measure that net displacement in a particular direction using an anti-derivative if the total average velocity is nonzero (if we included negative velocities around a given axis). Earthquakes, of course, tend to have nonzero net displacement, and thus an extremely biased velocity waveform along a particular axis.
So in fact, the soil beneath you vibrating back and forth at 1 to 5 inches per second is not fun. At 118 inches per second? Catastrophe.
Metres of movement would definitely be significant for a lot of mapping use cases. This is why the time component of any coordinate measurement is important, both due to earthquakes as well as plain old plate motion.
The entire camera clearly dips and then rises during the fault slide. It's not the fault moving in a curved path, it's the camera dipping and rising. You can clearly see that just by placing your finger or mouse cursor on any feature in the video.
It is remarkable how widespread of CCTV has helped in that field. Imagine being a scientist and never actually experience or see the earthquake you are into researching. That be like going to place where they are common and then sit a year or so and anticipating. Is it coming? Should be any time soon? Then when it happens you are in the toilet and have seen nothing apart from painting falling off the wall.
How about waiting over a decade and be getting a drink when it happens? Then waiting another decade and a technical problem preventing it from having been recorded.
in 1663 Scottish mathematician James Gregory figured out that you could calculate the distance between the Earth and the Sun by making measurements during the transit of Mercury or Venus across the Sun. You get much more accurate results with Venus, but the next transit of Venus wasn't predicted to be until 1761 and 1769.
In 1760 French mathematician Guillaume Le Gentil sailed from France to India to make observations of the transit, but due to weather and delays, he was still on the ship when summer 1761 arrived and he missed his chance to make his measurements. So he stayed in India for another 8 years. And then on the day of the 1769 transit, it was cloudy and he missed it again. So he went back to France where he found out he had long ago been declared dead, his possessions had been seized and his wife had married somebody else.
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