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No. 91: Jan-Feb 1994

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Do earthquakes raise mima mounds?

This possibility was tendered in SF#69 in our notice of a paper in Geology by A.W. Berg. Berg had covered a large sheet of plywood with sandy soil and then vibrated the wooden sheet. The result: small mounds formed at points where intersecting vibrations cancelled each other out. Could the many fields of Mima mounds in North America, Africa, and other continents have been created in a like manner by earthquakes?

The recent severe quake in India proved that the answer to the above question might be "yes." Some farm-lands that had been flat were riven by cracks several inches wide and up to 70 feet deep and, in addition, topped by undulating mounds up to a foot high.

(Anonymous; "Farmers Work Land Churned by Earthquake," Spokane Review, October 10,1993. Cr. J. Satkoski)

Comment. Mima mounds are often higher than 1 foot, but at it certainly seems that Berg's experiment has been repeated by Nature herself.

Mima mounds and like structures are cataloged in ETM1 in Carolina Bays, Mima Mounds. This catalog is described here.

From Science Frontiers #91, JAN-FEB 1994. 1994-2000 William R. Corliss

Science Frontiers Sourcebook Project Reviewed in:

Quotes

  • "A sourcebook of unexplained phenomena is therefore a valuable addition to a collection of scientific literature. William R. Corliss has provided this in the past with his source books of scientific anomalies in several subjects, and now he has provided it for astronomy. He has done an excellent job of collecting and editing a large amount of material, taken in part from scientific journals and in part from scientific reporting in the popular or semi-scientific press." -- "The Mysterious Universe: A Handbook of Astronomical Anomalies", reviwed by Thomas Gold, Cornell University, in Icarus, vol.41, 1980

  • "An interesting, systematic presentation of unusual weather [..] This book is recommended for a general audience" --"Corliss, William R., Tornados, Dark Days, Anomalous Precipitation, and Related Weather Phenomena, Sourcebook Project, 1983.", revieweed in Choice, September 1983
  • "..the science is necessarily somewhat speculative, but Corliss's symthesis is based on reputable sources." -- "Corliss, William R. (Compiler). Lightning, Auroras, Nocturnal Lights, and Related Luminous Phenomena" reviwed by Joseph M. Moran, Univ. of Wisconsin in Science Books and Films, Sep/Oct 1983

  • "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