Apparatus for predicting earthquakes and other terrestrial...

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – By magnetic means

Reexamination Certificate

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C324S259000, C033S35500D

Reexamination Certificate

active

06201396

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a terrestrial change predicting apparatus for indicating terrestrial changes in advance.
Terrestrial changes include, for example, crustal deformation, diastrophism and meteorological changes. Of such changes, the diastrophism in particular causes earthquake and its prediction is strongly desired. Known apparatuses for predicting earthquakes are such that seismometers are placed in many locations to collect data from such seismometers and make predictions by empirically analyzing such data.
Although it is termed the prediction of earthquake, the conventional method uses the pattern of the past data and its prediction accuracy is not good enough to prevent tragic disaster such as that caused by the great Hanshin-Awaji earthquake in Japan.
SUMMARY OF THE INVENTION
The present invention has been made to solve the above problem and has as its objects provision of a terrestrial change prediction apparatus for indicating geo-storm in a simple manner. It is a special object of the present invention to provide an earthquake prediction apparatus.
In accordance with the present invention, there is provided a terrestrial change prediction apparatus, comprising:
an indicator comprising a fixing member made of a nonmagnetic material and a plurality of magnetic bodies each having an N-pole end and an S-pole end and fixedly secured to said fixing member with said ends having the same magnetic polarity facing to each other so that a magnetic repulsive force is produced therebetween; and
support means for rotatably supporting said indicator such that said magnetic bodies normally orient in a substantially constant direction.
It has been found that when a compression or slip is caused by a very high pressure between two bodies, a phenomenon that the above-described indicator rotates slightly occurs. Such a phenomenon is also observed before an earthquake occurs. Such a phenomenon is termed “geo-storm phenomenon” herein.


REFERENCES:
patent: 4156178 (1979-05-01), Stockton
patent: 4217699 (1980-08-01), Stockton
patent: 4288927 (1981-09-01), Stocton
patent: 4980644 (1990-12-01), Todorov
patent: 5418523 (1995-05-01), Anderson et al.

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