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No. 7: June 1979

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Solar Activity Triggers Microearthquakes

Several scientists have suggested connections between solar activity, geomagnetic activity, and earthquake frequency. Singh has also found strong correlations between geomagnetic activity (definitely sun-triggered) and microearthquakes. He discovered first that the great solar storm of August 1972 was accompanied by large surges of both geomagnetic activity and microearthquakes. Following this lead, he studied records between 1963 and 1969, again finding strong correlations.

(Singh, Surendra; "Geomagnetic Activity and Microearthquakes," Seismological Society of America, Bulletin, 68:1533, 1978.)

Comment. While one can conceive of ways in which the streams of electrically charged solar plasma can modulate geomagnetic activity, the coupling of solar plasma variations to microearthquakes is more obscure.

From Science Frontiers #7, June 1979. © 1979-2000 William R. Corliss

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  • "Before opening the book, I set certain standards that a volume which treads into dangerous grounds grounds like this must meet. The author scrupulously met, or even exceeded those standards. Each phenomenon is exhaustively documented, with references to scientific journals [..] and extensive quotations" -- "Book Review: The moon and planets: a catalog of astronomical anomalies", The Sourcebook Project, 1985., Corliss, W. R., Journal of the Royal Astronomical Society of Canada>, Vol. 81, no. 1 (1987), p. 24., 02/1987