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Taipei - A Taiwan satellite recorded a sharp drop in ionospheric density above China's Sichuan Province before Monday's killer earthquake, verifying previous records that seismic activities affect ionospheric density, a newspaper said Friday.
The China Times said that Taiwan's Formosa-3 satellite recorded that in the six to 15 days before the May 12 earthquake in Sichuan, the ionospheric density in the atmosphere about 1,000 square kilometres around Wenchuan, epicentre of the quake, was 1.2 million electrically charged particles.
On May 11, the eve of the quake, the ionospheric density over Sichuan had dropped by half to 600,000 charged particles.
Formosa-3 was launched by the Taiwan National Space Organization in 2006.
Since then, Formosa-3 has recorded ionospheric density after 63 earthquakes measuring magnitude 5 or above on the Richter scale, revealing a sharp drop in ionosphere density in 70 per cent of these cases.
The history of seismo-ionospheric coupling studies has passed through several stages starting from astonishment after initial discovery, enthusiastic but often speculative publications, and defeat by severe critics, to ultimately consecutive and systematic studies which have led to a substantiated physical model.
It is commonly accepted that the Good Friday Alaska earthquake on March 27 of 1964 gave seismo-ionospheric coupling studies its initial impetus. Among many publications describing the electromagnetic and ionospheric phenomena associated withthis earthquake, one can find at least two, where pre-earthquake effects were mentioned (Moore1964; Davies and Baker 1965).
The present paper accumulates recent advances in understanding of the physical mechanism of seismo-ionospheric coupling and some practical applications developed recently for short-term earthquake prediction using ionospheric precursors of earthquakes.
Special attention is attracted to the connection between thermal anomalies and latent surface heat flux variations associated with the process of earthquake preparation and the presented model of seismo-ionospheric coupling.
The most probable connection is provided by plasma-chemical processes in the troposphere that involve latent heat and water molecule attachment to ions produced by radon ionization. The model explains the interconnection of different electro-magnetic precursors of earthquakes and build a precursor hierarchy.
As presented, the concept of an earthquake preparation zone joins geophysical and geochemical precursors with iono-spheric precursors of earthquakes showing that the latter belong to the same family and should be regarded by seismology equally. Advantages and disadvantages are regarded concerning different techniques of ionospheric monitoring in relation to ionospheric precursor registration.
The main and probably most important conclusion lies in the fact that the level of our present knowledge of ionospheric precursors of earthquake permits us to use them already in short-term earthquake prediction at least in the testing regime demonstrated in the last paragraph.
Originally posted by SystemiK
Thanks MG, that should keep me busy reading for awhile...
It's a good question Dan, I am leaning heavily toward HAARP being capable of causing quakes, it's just too bad that reliable information is so difficult to come by.