In fact, seismic waves turn out to be one of the most ingenious proofs that the surface of the Earth is actually flat.
This was a most excellent answer. You win some FE Kudos points. Spend them wisely ... And now to shoot holes in it.
The discontinuities of the seismic waves assumed by modern science to occur at the crust mantle boundary are actually a network of huge caverns and large underground bodies of water and that they would match perfectly the seismic data.
Great masses of water are interpreted as molten rock.
I'd like you to look again at my graph in the OP. Specifically at the red line ... the p-wave (the one travelling through the core).
It starts at the epicentre at 11:15am. It reaches a station 165 degrees (111km per degree * 165 = 18315km on a flat earth) at 11:38am. 23 minutes later.
23mins is 1380 seconds ...
Now, the speed of sound in water is 1.5km/s.
Multiplying together (1.5*1380) I get 2070km. You are 16,000km too short. It can't be water.
However if the earth is made with liquid iron under pressure ...
I can see the speed can get up to over 9km/s (upto 11km/s if I throw some impurities like nickel and silicon in there)
Now at 11km/s for 1380 seconds I get 15180km. But you are 3000km short I hear you cry. And yes I am, but a p-wave doesn't go across the surface of the earth. It takes the direct route through the middle. The diameter of a round earth is just 12,742km. I now have 3000km in hand and that is going to cover my acceleration and deceleration times under lower pressures near the surface. Its a double-whammy win for round earth ... less distance through the earth and faster medium to travel through ... you are woefully short ... your water p-wave only made it 1/8th of the way.
As a side note, are volcanoes actually geysers on a flat earth? Beware Mr Rowbotham ... sometimes he takes you to a place you won't like, but good FE knowledge all the same.
Seismic waves travel faster north-south than east-west for a full four seconds.
I don't understand where you got these numbers but being as your P-wave is going to need almost 3 hours instead of the registered 23 mins, you can keep your 4 seconds.
"The S-wave shadow zone is larger than the P-wave shadow zones; direct S waves are not recorded in the entire region more than 103° away from the epicentre. It therefore seems that S waves do not travel through the core at all, and this is interpreted to mean that it is liquid, or at least acts like a liquid. The way P waves are refracted in the core is believed to indicate that there is a solid inner core. Although most of the earth's iron is supposed to be concentrated in the core, it is interesting to note that in the outer zones of the earth, iron levels decrease with depth.
I have 3000km in hand ... I'm ok with this. I'm still sending my wave through a solid medium (rock) so I'm gonna blow your water time away.
Seismologists sometimes draw contradictory conclusions from the same seismic data. For instance, two groups of geophysicists produced completely different pictures of the core-mantle boundary, where there are believed to be 'mountains' and 'valleys' as high or deep as 10 km. The two groups used virtually the same data but used different equations to process them. Seismologists also disagree on the rate of rotation of the inner core: some say it is rotating faster than the rest of the planet, others that it is rotating more slowly, and yet others that it rotates at the same speed!
This is all fascinating, but it isn't proving the earth is flat. Only an attempt to muddy the waters and discredit the science we have.
It is becoming increasingly evident that the earth model presented by the reigning theory of plate tectonics is seriously flawed. The rigid lithosphere, comprising the crust and uppermost mantle, is said to be fractured into several 'plates' of varying sizes, which move over a relatively plastic layer of partly molten rock known as the asthenosphere (or low-velocity zone). The lithosphere is said to average about 70 km thick beneath oceans and to be 100 to 250 km thick beneath continents. A powerful challenge to this model is posed by seismic tomography, which shows that the oldest parts of the continents have deep roots extending to depths of 400 to 600 km, and that the asthenosphere is essentially absent beneath them. Seismic research shows that even under the oceans there is no continuous asthenosphere, only disconnected asthenospheric lenses.
A moment ago you said the earth had water under it. Now you're quibbling over the size of the crust. 70km, 600km .... does it matter in general terms when the diameter of earth is over 12,000km to my p-wave propagation?
The more we learn about the crust and uppermost mantle, the more the models presented in geological textbooks are exposed as simplistic and unrealistic. The outermost layers of the earth have a highly complex, irregular, inhomogeneous structure; they are divided by faults into a mosaic of separate, jostling blocks of different shapes and sizes, generally a few hundred kilometres across, and of varying internal structure and strength. This fact, in conjunction with the existence of deep continental roots and the absence of a global asthenosphere, means that the notion of huge rigid plates moving thousands of kilometres across the earth is simply untenable. Continents are about as mobile as a brick in a wall!
here's the source:
https://www.theflatearthsociety.org/forum/index.php?topic=68379.0
I don't see any source. All I see is a bunch of lunatics on the internet discussing it.
Are you trying to discredit the very notion of earthquakes with that last post, arguing the plates don't move, ergo there can be no earthquakes? This would be a very brave and interesting tactic, but I fear one that will bring a very rapid close to this thread and a victory for Round Earth.
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