Dear RG colleagues
According to the concept of dooms-day, there will be a disaster on whole earth due to a shake.
Thanks in advance for valuable feed-back.
Regards
Ijaz
There is the above answer, and there may behind that answer be subtle physical reasons to argue against the strong requirement of the original post, that the Earth shake (resonate) simultaneous, for all part of the Earth. I offer a simple answer, that disagrees with that given before, and is based upon the simple observation of the Earth as a particle. Clearly, a solid, disconnected (unattached to any other object) mass is akin to a bell, and it should therefore have a characteristic ring. Bells resonate over their whole mass, and not just over small regions thereof.
To give a full answer, one will need to consider lateral (shaking) waves versus compression waves, and their interactions in various materials, and the answer is likely to be quite nuanced.
Very large earthquakes will liberate tremendous amounts of energy, great varieties of waves and complex motions resulting from complex interactions between the originaly triggered known classical body and surface seismic waves, there will be all kinds of reflections, refractions, conversions, dispersions, multi- interferences etc, usually every incident seismic wave on a solide- solide interface will give 4 new waves every one of them will continu reflections and refractions, multiplying the number of new sources. although surface waves propagate near the surface, their primery components will interact with each others, and with other waves, interferences will cause the whole earth to oscillate, this will provoke the "free oscillations of the earth" more is found here
http://booksite.elsevier.com/brochures/geophysics/PDFs/00002.pdf
and ( reference of the slide)
https://www.google.com/search?client=safari&hl=fr-jo&biw=1024&bih=672&tbm=isch&sa=1&ei=UltcWt-_JcmjwALy2IyIDg&sjs=1&q=motions+of+the+free+oscillations+of+the+earth+&oq=motions+of+the+free+oscillations+of+the+earth+&gs_l=mobile-gws-img.12...618182.633460.0.636003.32.32.0.0.0.0.281.5333.0j27j5.32.0....0...1.1.64.mobile-gws-img..7.6.1467...41j30i10k1.0.lGFfahnkv90#imgrc=ITu6TTp3WLX4tM:
An earthquake is a result of the interaction of two plates. Thus, its location has to be at those plates. The other plates of the world are not involved. For all of the world's plates to be involved at once, there'd have to be a bunch of separate earthquakes at the same time, which would be quite a coincidence. The closest thing to it that I can think of is the idea that a very big space rock hitting the Earth at high speed could apply enough force to the plate it hits that that plate jams into its neighbors hard enough to make them jam into their neighbors in a Newton's-balls-like chain reaction that does affect every plate. Then even if you still called it multiple separate earthquakes, at least they'd happen at once and have a single common cause. But the Earth's internal forces never apply that much energy in such a focussed way on their own, and I'm not sure that the idea is well established even for impacts from space.
@ Kenneth, waves do certainly pass through the core ! Through the outer core you have PKP where K here stands for core in German you also have the PKiKP waves that go through the whole outer core then are reflected on the interface between the inner and outer cores and continues to the surface. . While the inner core is also traversed by the so called PKIKP , I here stands for inner core, there are other types and S type waves also traverse the inner core too.
More in the figure which is extracted from here
http://kiska.giseis.alaska.edu/input/west/guides/palguide/body.html
A very nuanced answer, indeed. Thank you all for adding the details.
Everything is possible, but unlikely. The point of view of this question in modern science is not and can not be due to the extreme complexity of such a system as the Earth. The complexity of solving this problem is comparable with the complexity of solving the problem of the device and the functioning of man as a super complex physico-chemical-biological-social system. At present, in humans, we still can somehow penetrate experimentally, only Zhul Vern can penetrate the bowels of the Earth so far. So it is appropriate to raise the question of priorities. Obviously, the problem of man and the human community is a higher priority. With some knowledge in this area, we can somehow influence this. Even if we learn something very important about the Globe, we are unlikely to be able to influence the processes in it: our scales and the scale of the Globe are incommensurable. We are just insignificant fleas on its surface, from which at any moment the Globe can be released if "He wants" it.
@Ken, I know that Shear waves do not travel in liquids, their velocity reduces to Zero there, but there are other types of waves and phases that travel everywhere, I answered the question senso stricto, can the whole earth be shaken by an earthquake simultaneously? After a great earthquake every atom on earth will move regardless of how much. Now, if the question means can an earthquake destroy the planet earth? Tectonic earthquakes are unlikely to do so but it is not hard to imagine a collusion with a massive celestial body (whatever the probability is low) can theoretically destroy the planet earth after provoking an exceptionally great impact earthquake (shaking).
@Ken one more thing, of course S-waves are not transmitted through the liquid outer core. However S type waves resulting from the refraction of P waves at the interface outer core / Inner core will exist in the solide inner core.
Most of my answers in all topics meets with Prof. Kenneth opinion. I agree with him 100% that no any earthquake will shake the whole earth simultaneously.
From Quran, surah zilzal, pleas read its English translation taken from the link https://www.quran411.com/surah-zilzal.asp and then try to reach a meaningful end-up.
Theoretically, seismic waves travel in all directions causing "perceptible quake" for nearby regions and "non perceptible quake" for other regions. The energy of the earthquake will be absorbed in earth layers and tectonics.
In historical times only the Tunguska event produced a noticeable earthquake felt far and wide; and it was not even a meteor collision. No one knows what an earthquake an impact of, say, a 10 km asteroid will cause on Earth due to much higher energies produced that a simple Earthly earthquake.
What Ijaz is probably thinking about is a major meteor collision with the Earth.
No. The impacts of earthquakes are restricted to its confines as exemplified already
@ Ken, the greatest possible earthquakes can indeed be caused by meteorite impacts, , this is fare from being silly, it is something to be learned. Here are some other natural causes, and there are more classified as induced. Have a nice day,
The slide is from:- http://slideplayer.com/slide/6242696/
@Ken Ok, but my precise answer is as follows:- an earthquake caused by the collision of a massive celestial body with the planet earth may theoretically bring about a Doomsday like event on earth. whatever tiny the probability can be, it is probable ! the probability here is by far higher than precisely getting " Najib", Ken or Donald just after the very first meeting of their parents!
@ Ken, once more, of course don't be worried, this is expected to be romantically detected by the NASA, the Americans, Russians will unit forces, take the Chinese on board, and send missiles that will succeed in diverting the celestial body just in time, Hollywood will make millions of US $s by making a movie, children will applaud and be proud of humanity!
No, I don't think it is possible.
But collision with any large asteroid may cause this.
It is not possible. From the historical events of earthquake across the globe, such probability has not been predicted.
Let us agree that the collision of a massive celestial body with the planet earth ( If it happens) will certainly produce an exceptional earthquake.
It may depend on the magnitude of the earthquake. However, no matter how high the magnitude, I don't not think an earthquake can shape the whole of the earth unless the happen simultaneously.
@Ken,
Of course, it is collision indeed. It will be corrected. Have a nice day.
Inner core of the Earth is a a hot glowing solid sphere, if the heat generated from this inner core could not escape or trapped by outer core+mantle+crust, then it is possible for inner core one day it will burst out due to very high heat/temperature and pressure effect and in turn a gigantic or super earthquake may be generated and a global disaster will result (dooms-day disaster).
Sudden out-burst of inner core looks similar to the statement of Quranic verse translated as " And the earth throws up her burdens (from within)".
Please notice that there is an error in the following slide show
http://slideplayer.com/slide/6242696/
In slide 16, the difference should be about 31 times and not 10, 10 concernes the seismic wave amplitude not its "Power" ~ Energy.
https://www.researchgate.net/post/Is_there_any_physical_limit_or_upper_bound_to_the_seismic_moment_magnitude_scale
