Killer Earthquakes and Other Problems Beneath the Surface
Silent and unexpected, without warning, they smite with irresistible force. All that dwells upon the surface is subject to the invisible fury of the earthquake. Shacks and mansions, buildings, bridges, and roadways; their permanence rendered illusory. Yet for all its titanic power, the earthquake, unlike other natural forces, does not kill man directly. It exerts itself on the very things that sustain our civilization, causing what normally provides shelter to cave in and crush us.