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Index » Regional/Local » Elsewhere » Earthquake Page: 1, 2  Next
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Steely_D

Steely_D Avatar

Location: Biscayne Bay
Gender: Male


Posted: Sep 22, 2022 - 9:40am

 Bill_J wrote:


So you leave the door open to keep it well ventilated, then when the Tsunami is coming you discover that there is a nest of poisonous snakes in there...


“Imagine if you will…”
geoff_morphini

geoff_morphini Avatar

Gender: Male


Posted: Sep 22, 2022 - 9:35am

 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).


Funny I hadn’t seen this thread earlier. It can be really difficult to determine the wave forms traveling through small bodies of water in buildings since there is so much interference (constructive and destructive) happening. Also, the building is an oscillator that is responding to ground motion based on its own peculiar characteristics (how it is attached to the ground, how tall it is, orientation, etc.). So, with all of those caveats, it looks like the video misses the p-wave (makes sense seeing they had time to grab the camera and turn it on), the first part could be an s-wave and the second set could be surface waves (especially when they start rotating). Pretty cool. 
KurtfromLaQuinta

KurtfromLaQuinta Avatar

Location: Really deep in the heart of South California
Gender: Male


Posted: Sep 21, 2022 - 9:26pm

 miamizsun wrote:

taiwan earthquake video


That first clip says it all.
I've been in a few like that.


miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Sep 20, 2022 - 12:46pm

taiwan earthquake video


NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 17, 2022 - 9:21pm

 Bill_J wrote:
 Steely_D wrote:

We saw those when visiting somewhere. They looked so depressing, but I guess maybe that’s better than death? Maybe.
So you leave the door open to keep it well ventilated, then when the Tsunami is coming you discover that there is a nest of poisonous snakes in there...
 
{#Lol}
kurtster

kurtster Avatar

Location: where fear is not a virtue
Gender: Male


Posted: Mar 17, 2022 - 4:23pm

 NoEnzLefttoSplit wrote:

yeah,   but looking at it again, the distinction is not that clear. I think it was just me seeing patterns where none exist. At first I thought the water was going back and forth and then side to side but it's doing both movements in both phases.

And the quake was quite deep so it would if anything be p and s waves and not rayleigh or love waves, if I understand them correctly, which is unlikely.

However, there were two phases, which could be due to reflection, i.e. two sets of s-waves offset from each other.  dunno.  
 
You have a symmetrically asymmetrical tub with the ledge at the one end.  It causes a wave all by itself just as a reef on the ocean floor does.  Then it rises, breaks, hits the back end for a backwash wave of a type that would not exist if the bottom of the tub was the same throughout.  And what is the alignment of the tub in relation to the shock wave, perpendicular or an oblique angle, etc.  And was the shock wave itself uniform or distorted ?  

What you do have is total chaos in regards to the waves present.  This situation is very similar to what we have up here in the Great Lakes, (especially Erie which is very shallow with an average depth of just 55 feet) with swells coming from multiple directions all at the same time, especially in storms.  What you saw in the tub is very similar to the wave action that took the Edmund Fitzgerald as it tried to approach and pass through a narrow strait in a brutal storm.  Waves reflecting off the banks interacting with wind driven waves from the storm.  IIRC the final analysis was waves coming from 5 different directions all at once.  And the bow and stern sitting atop the respective crests of two swells leaving the length of the hull out of the water and the weight unsupported a tad too long causing it to snap in half in the middle.  Storm waves on the GL's can get up to 50 feet at times, and are very irregular with the short fetches.
Bill_J

Bill_J Avatar



Posted: Mar 17, 2022 - 3:02pm

 Steely_D wrote:

We saw those when visiting somewhere. They looked so depressing, but I guess maybe that’s better than death? Maybe.


So you leave the door open to keep it well ventilated, then when the Tsunami is coming you discover that there is a nest of poisonous snakes in there...
ScottFromWyoming

ScottFromWyoming Avatar

Location: Powell
Gender: Male


Posted: Mar 16, 2022 - 10:34pm

 KurtfromLaQuinta wrote:
I would imagine that would be one heck of a ride.
Either that, you might find a big ship trying to tie off on your unit.
That's a good buoy.







KurtfromLaQuinta

KurtfromLaQuinta Avatar

Location: Really deep in the heart of South California
Gender: Male


Posted: Mar 16, 2022 - 8:40pm

 Steely_D wrote:

We saw those when visiting somewhere. They looked so depressing, but I guess maybe that’s better than death? Maybe.
I would imagine that would be one heck of a ride.
Either that, you might find a big ship trying to tie off on your unit.
That's a good buoy.



NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 16, 2022 - 12:52pm

 miamizsun wrote:
 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).
like quake p and s waves? 
 
yeah,   but looking at it again, the distinction is not that clear. I think it was just me seeing patterns where none exist. At first I thought the water was going back and forth and then side to side but it's doing both movements in both phases.

And the quake was quite deep so it would if anything be p and s waves and not rayleigh or love waves, if I understand them correctly, which is unlikely.

However, there were two phases, which could be due to reflection, i.e. two sets of s-waves offset from each other.  dunno.  
NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 16, 2022 - 12:47pm

 dischuckin wrote:
 NoEnzLefttoSplit wrote:

I reckon there is a huge need out there for zorbs with some kind of  rapid inflation device for people in at risk areas to have stashed at home that they could climb into in an emergency. There are lots of places on the planet exposed to a tsunami risk and no high ground around. And surely, they can't be that costly to manufacture. If they were made of resilient plastic, they would withstand most scenarios.

there are metal ones... spendy, but life is worth _ 
https://tsunamipods.com/
http://survival-capsule.com/Pr...
 
ha, look at that. 

mind you for some reason those look like that would immediately induce sea-sickness in 90% of the population.

Anyone want to front up the venture capital? You read it here first.

Tsunami zorbs, $200 a pop.

- maybe pop is not the best word to market these things. 
miamizsun

miamizsun Avatar

Location: (3261.3 Miles SE of RP)
Gender: Male


Posted: Mar 16, 2022 - 12:45pm

 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).


like quake p and s waves? 
dischuckin

dischuckin Avatar

Location: dry shippys wa
Gender: Male


Posted: Mar 16, 2022 - 12:25pm

 NoEnzLefttoSplit wrote:

I reckon there is a huge need out there for zorbs with some kind of  rapid inflation device for people in at risk areas to have stashed at home that they could climb into in an emergency. There are lots of places on the planet exposed to a tsunami risk and no high ground around. And surely, they can't be that costly to manufacture. If they were made of resilient plastic, they would withstand most scenarios.

there are metal ones... spendy, but life is worth _ 
https://tsunamipods.com/
http://survival-capsule.com/Pr...
NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 16, 2022 - 11:00am

 Steely_D wrote:
I remember watching the other Fukushima tsunami on TV live with my family. We watched people running towards overpasses and other high ground - and then it dawned on us that they weren't fast enough. And they were gonna drown right now while we watched.

Easily one of the more disturbing things in recent memory. 
 
I reckon there is a huge need out there for zorbs with some kind of  rapid inflation device for people in at risk areas to have stashed at home that they could climb into in an emergency. There are lots of places on the planet exposed to a tsunami risk and no high ground around. And surely, they can't be that costly to manufacture. If they were made of resilient plastic, they would withstand most scenarios.
Steely_D

Steely_D Avatar

Location: Biscayne Bay
Gender: Male


Posted: Mar 16, 2022 - 10:51am

I remember watching the other Fukushima tsunami on TV live with my family. We watched people running towards overpasses and other high ground - and then it dawned on us that they weren't fast enough. And they were gonna drown right now while we watched.

Easily one of the more disturbing things in recent memory. 
Coaxial

Coaxial Avatar

Location: 543westofParadis,1491east ofParadise
Gender: Male


Posted: Mar 16, 2022 - 9:35am

 miamizsun wrote:
 
Now that would sure rinse the soap off of you.{#Good-vibes}
kurtster

kurtster Avatar

Location: where fear is not a virtue
Gender: Male


Posted: Mar 16, 2022 - 9:06am

 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).
 
One of the last earthquakes I remember from growing up in Cal happened while I was in the bath warming up from a long day of surfing.  A pretty good one and I nearly got seasick from the water moving around in the tub, and I never get / got seasick or motion sickness.  Pretty disorganizing.  The water in our swimming pool kept moving for at least another half an hour afterwards.

The other memorable one was a big roller.  Our house was situated at the top of a hill looking down at the ocean.  I actually saw the ground rise and fall just like an ocean wave as the shock wave went due south towards Laguna Beach, the next town south.  The were several waves kinda like the form of the Loch Ness Monster.

Here is my desktop.  The picture is from an exposed portion of the strata at the beach I grew up at just below our house and the soil composition of the land that these shock waves I mentioned above went rolling through.

.
DESKTOP 03 16 2022
NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 16, 2022 - 8:59am

 islander wrote:
 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).
Thank you for killing my next 20 minutes of productivity.  Off to google. 
 
{#Lol}  sorry.  
islander

islander Avatar

Location: Seattle
Gender: Male


Posted: Mar 16, 2022 - 8:55am

 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).


Thank you for killing my next 20 minutes of productivity.  Off to google. 
NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 16, 2022 - 8:39am

 miamizsun wrote:
 
If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).
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