. . "Juvenile works" . "Juvenile works"@en . . "Earthquakes"@en . "Earthquakes" . . . . "Explains how and why earthquakes happen, their effect on the environment, and how potential catastrophies could be prevented by predicting when earthquakes might occur."@en . "Explains how and why earthquakes happen, their effect on the environment, and how potential catastrophies could be prevented by predicting when earthquakes might occur." . . . .