Evening Republican, Volume 23, Number 207, Rensselaer, Jasper County, 27 August 1920 — Earthquakes. [ARTICLE]

Earthquakes.

The origin of earthquakes has been traced to two principal causes, the first of which is tetonic, and the second volcanic. , The former refers to move-, meats in the earth’s crust, known as faults, possibly caused by the shrinking of the interior of the earth by reason of-cooling.