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Old 02-June-2008, 11:13 AM
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thomheg thomheg is offline
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[quote=tusenfem;1253374]

Quote:
Originally Posted by tusenfem View Post
I think that electromagnetic forces are important in the creation of earthquakes, as I have found that there are some EM phenomena related to quakes, as shown in the data from e.g. DEMETER.
Yes, there were very low frequencies reported prior to an earthquake. No obvious reason was found, so the reason was estimated to be the earthquake. That couldn't be true, since the quake happened later.
Quote:
Originally Posted by tusenfem View Post
There is created a current system, reminiscent of a solenoid, which generates a magnetic field. I assume that the solenoid has half a circle through the atmosphere and half a circle through the magnetosphere (??). The magnetic field created by a solenoid is directly dependent on the current that is flowing around it.
The relation is more about a magnetic system and induced currents, that create closed loops in the form of lightning. That closed loop is estimated to act as a solenoid and 'catch' magnetic disturbances not related to the first, but occurring at that time. With the breakdown of the current the field discharges in a selfconducting effect, concentrating it's energy within a small area.
I would apply Faradays law:
http://hyperphysics.phy-astr.gsu.edu...farlaw.html#c1
The A is very large, since I'm talking of hundreds of kilometer in width and some in hight. The induced voltage is by means of this law very high (as you could see in lightning).
Lava seems to be charged as you could see in various observations of lightning at vulcano eruptions, but does not seem to easily discharged (otherwise it wouldn't reach the surface charged).
So an induced Lorentz-force would gain a strong mechanical impulse in such an area, what we usually call an earthquake. that effect is more likely, but not restricted, to faults or cracks of the earth crust, because there is lava. Since lava (or magma) seems to carry and keep charges, it would be much more effected by a magnetic pulse.

The correct numbers you could find out, since I'm not a geologist, but you are.

Thomas Heger