Contents

Introduction -- Seismometry -- Earthquake motion discussed theoretically -- Earthquake motion as deduced from experiment -- Earthquake motion as deduced from observation on earthquakes -- Effects produced by earthquakes upon buildings -- Effects produced upon buildings (continued) -- Effects of earthquakes on land -- Disturbances in the ocean -- Determination of earthquake origins -- The depth of an earthquake centrum -- Distribution of earthquakes in space and time -- Distribution of earthquakes in time (continued) -- Distribution of earthquakes in time (continued) -- Barometrical fluctuations and earthquakes; fluctuations in temperature and earthquakes -- Relation of seismic to volcanic phenomena -- The cause of earthquakes -- Prediction of earthquakes -- Earth tremors -- Earth pulsations -- Earth oscillations -- Appendix: List of the principal books, papers, periodicals, which are referred to in the preceding pages.