今天
An increasing number of geomagnetic observation stations were established and operated in China since 1966 to the 1980s (and until present), effectively covering a large area of the nation. Close relativity between magnetic storms and Earthquakes, as well as close relativity between the regional differences of magnetic disturbance recorded by these stations and the epicenter location of Earthquakes, was discovered and observed by Tie-zheng Zhang during1966 - 1969. On such basis during 1969/1970, Zhang developed the “Magnetic Storm Double Time Method” for predicting the occurrence time, magnitude and epicenter location of EQs.
By this method,. Zhang successfully predicted the Yunnan Tonghai Ms7.7 EQ Jan. 5, 1970 (occurrence date only), the Bohai ML5.2 EQ, Feb. 12, 1970 and other EQs, including the Haicheng Ms7.3 EQ Feb. 4, 1975, and the Tangshan Ms7.8 EQ July 28, 1976.
On the basis of this method, Z.P. Shen developed the “Geomagnetic Deflection Angle Double Time Method” in 1970, and later developed the “Magnetic Storm – Moon Phase Double Time Method” in 1990s. With this method, Shen is able to predict the occurrence dates of most of the strongest EQs Ms7.5 on the Earth since 1991.
Zhang also discovered that strong EQs often correspond with a number of sets of magnetic storms. Z.Q. Ren discovered close relativity exists between Syzygy astronomy events and such sets of magnetic storm as well as the occurrence dates of strong EQs. Computerized calculation of historical magnetic storm and EQ data proves the effectiveness of this method. Over 3,000 days of geomagnetic isoline images are computer processed from over 400,000 geomagnetic field data obtained by Zhang from over 100 geomagnetic observation stations during 1966 – 1984. Clear relativity is shown between the Earth’s revolution, Moon phases, Syzygy astronomy events related to the Earth, and their disturbance effect on the Earth’s geomagnetic field and the occurrence of EQs.
Important Note (2005): It was later in 2003, after the above paper was written, that the author learnt about the excellent work of Larry Berg from his website: http://www.justgoodtiming.com/. His Astro Indicator/Berg Timer analysis discloses an additional background condition of all the movements’ of/on the Earth. Then in 2004, Liu Cheng-chang has also proposed further analysis of additional macro background conditions of the Solar System’s revolution in the Galaxy. Such new information requires the author to make further revisions to the above paper in the future.
Welcome questions and discussions on the issues presented by the author.
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