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CCTV footage captures video of an earthquake fault in motion

smithsonianmag.com

51–60 of 93 posts

Re: CCTV footage captures video of an earthquake fault in motion

#51
post #31

Earlier quoted context omitted.

You could lose all your property, without compensation too, if your unlucky enough to have a big enough meteorite crash into it.

Or be native

Natives signed treaties which are still respected today.

Re: CCTV footage captures video of an earthquake fault in motion

#52
post #47

Earlier quoted context omitted.

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.

California has the Cullen Earthquake Act.

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.

https://law.justia.com/codes/california/code-ccp/part-2/titl...

Re: CCTV footage captures video of an earthquake fault in motion

#53

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 ma…

in/s? Inches per second, or something else? One inch per second is the speed of an excited snail.

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.

Re: CCTV footage captures video of an earthquake fault in motion

#54
post #31

Earlier quoted context omitted.

Or be native

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!

Re: CCTV footage captures video of an earthquake fault in motion

#55
post #8

I know nothing so help me here. Why is this so rare? Aren't earthquakes, cameras, and monitoring of them pretty common?

Videos of earthquakes are common enough. 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).

The California Memorial Stadium is built directly on a fault line, right?

Re: CCTV footage captures video of an earthquake fault in motion

#56
post #55
post #8

Earlier quoted context omitted.

Videos of earthquakes are common enough. 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).

The California Memorial Stadium is built directly on a fault line, right?

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.

Re: CCTV footage captures video of an earthquake fault in motion

#57
post #54

Earlier quoted context omitted.

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!

[dead]

Re: CCTV footage captures video of an earthquake fault in motion

#58
post #54

Earlier quoted context omitted.

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!

If they work hard enough, perhaps they can buy some of it back. How civilized.

Re: CCTV footage captures video of an earthquake fault in motion

#59
post #43

Earlier quoted context omitted.

Interesting. I see no other video. I use brave so maybe it blocked all the ads and noise.

Firefox with AdBlocker Ultimate. Also saw no other videos, thankfully.

OT, but the company behind that extension seems to be a bit shady.

uBlock Origin is open source, very efficient, and seems to be well regarded around these parts.

Re: CCTV footage captures video of an earthquake fault in motion

#60
post #28

Earlier quoted context omitted.

It sure would suck to lose half your property to the earth suddenly saying screw you.

You could lose all your property, without compensation too, if your unlucky enough to have a big enough meteorite crash into it.

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.
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