Our Violent Earth [antikvár]

<: GIANFRANCO GORGONl/CONTACTEARTHQUAKESCitizens of Gemona, Italy, wander through their shattered city. On the night of May 6, 1976, a strong earthquake jolted Europe. The most severe damage occurred in northeastern Italy, where about a thousand people died and many more were left homeless.Earthquakes are caused by movement of the rock that makes up the earth's crust, or outer layer. Millions of earthquakes occur every year. Most are so faint they can be detected only with sensitive equipment. About 700 quakes each year cause damage.3