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Tremors deep inside the Earth are usually produced by magma flowing beneath volcanoes, but a new study suggests they can also be produced by the shifting and sliding of tectonic plates.
Originally posted by beforebc
3.] The crust is separated from the inner mantle (not by layers of molten lava) but by two inactive zones, that are pliant in nature. One is the MOHO .. it was discovered years ago and is described in most geology books.
The second is the "Plastic Zone." This term was coined by Don L. Anderson, in "The Plastic Layer of the Earth's Mantle," Scientific American, July 1962, No 1, Pg. 52-9.
4.] These two pliant layers give the earth's crust a slight degree of freedom of motion that results in the crust extending toward the sun as the earth turns and the crust sees the first rays of sunlight. This extension toward the sun is quite independent of the inner mantle.
5.] As the earth orbits, being as it is in simultaneous rotation, and being that the rotational axis is tilted at an angle of about 23.5 degrees, the crust is caused to yield and bend in a most un-natural fashion. This causes crustal motions, that are mistakenly called tectonic . They are obviously NOT tectonic - they are solar orbital forces.
1.] We must orient ourselves to the ecliptic .. because all Solar and Lunar gravitational forces and all energy .. apply to the earth along the plane of the ecliptic.
Periods of those vibrations are correlated with more than ten of known long periods of spheroidal and torsional oscillations of the earth which result from the occurrence of large earthquake. The amplitudes of the fluctuation we have observed are correlated with the lunar synodic period, indication that they are driven by tidal forces.