Show About Earthquakes I The earth is constantly quivering some point on time surface being the seat of a slight suake nearly every moment of the day By far the larger number of these are of little intensity being felt only by delicate instruments and the majority of I cases come from volcanic regions So few facts are known that we can neither draw deductionsnor even determine the causes It is reported however that earthquakes more commonly occur at night and that they are more abundant in winter than in summerTime summer-Time only settled facts about earthquakes earth-quakes are that they are the result of some shock imparted to tho rocks at a considerablc distance beneath the surface sur-face and that this shock reaches the surface sur-face in a series of concentric rings |