Movement of Earth's Poles

1904

One of the strange phenomena of nature for which an explanation has long been sought is the fact that the earth's poles undergo a certain more or less irregular displacement, says Harper's Weekly.

Professor John Milne, of England, well known as an authority on earthquakes, has suggested that this displacement may be due to movements of the earth's crust, and consequently depend on the number and frequency, of earthquakes. The theory attracted the attention of M. A. de Lapparent, who has studied the subject with the aid of observations made of earthquakes, as well as of astronomical observations of the movement of the poles, and his results are strongly confirmatory of the English seismologist's theory.

Any movement of the earth's crust, such as the sinking of an ocean bed or the rising of a continent, apparently occasions earthquakes and earth tremors and it is only reasonable to believe that such movements must produce some change in the distribution of the mass of the earth, which would, of course, directly affect the position of the earth's axis, which is also affected by other and exterior causes.

Conversely, by studying the change in the position of the earth's axis by astronomical observations it would be possible to study the changes in the earth's crust. This new science, according to knowledge, "might almost be called the new astrology, since we might perceive, in the apparent motions of the stars' cataclysmic action, possibly of direct influence in man's destiny on the earth."