What has been the effect on earths magma/magnetic field of nuclear bomb EMF. Does it contribute to weakening?

Question

Does the emf burst of nuclear detonations affect the magma flow below the crust of this planet? What is the effect on the Earth,s magnetic field and tectonics? I know that the magnetic field varies naturally, but have we disturbed it and started another disaster clock with our nuclear experimentation? Check field intensity drop off in last 50 years. Compare earth to mars in this respect for possible consequences. jTick, tick, tick...

Answer 1

Not really sure, but as a geologist, my gut feeling would be to answer no.

Nuclear explosions are pretty small compared to the scale of the earth...

Bear in mind that the Earth's magnetic field is generated in the outer core by the convection of vast amounts of liquid iron, and that the outer core is sheilded from our nuclear tests by the several thousand kilometres of solid rock forming the earth's mantle. Electromagnetic radiation, even at high enegy (x-rays, gamma rays) I don't think travels very far through rock.

As for changing the the flow of magma below the crust...there reallt isn't very much magam to change the flow of. Except for the outer core, the earth is almost entirely solid. Magma is generated only locally, and this is controlled by the global-scale process of plate tectonics. This is governed by the planet trying to rid itself of its internal heat, so unless you change the internal heat budget then you won't have any long-term effects on plate tectonics.

I could imagine that a nuclear explosion could potentially trigger an eruption of a local volcano or earthquake (provided there was already magma there awaing eruption/stress built up in the crust), just as an immediate rusult of the shockwave, but you are basically just triggering something that was going to happen anyway.

Answer 2

As Andrew is a geologist , i must agree with him geologically.
There are also some rather fun weather phenomenon that
render the power of nuclear weapons puny.
Astrophysicaly we are a part of a very high energy system , locally that is. We are bombarded by far more frightening things from Ol' Sol. One well placed Solar flare can make this net, and every elec-tech device, a paperweight.
Don't discount the immensity of the field we are talking about.
Earth's reaches thousands of miles into space and is partially "charged " with protecting life on Her.
Now, there are things that will strip the planet's magnetic field...plasma/mass ejection from the Sun comes to mind.
But it would have to be so strong , it might heat the atmosphere passed our point of careing. Solar storm of 1859 ring a bell ?



NowThat'saFire!!!!

Answer 3

each thing interior the Blast selection could be incinerated, notably much each guy made shape in concussion blast could be destroyed or tremendously broken (this would not destroy grass exchange into its incredibly purely quite stable wind). After that comes the ask your self wave, it may blow eardrums and smash homestead windows yet isn't considered fatal and its maximum unlikely to destroy various something.