Earthquakes and seismic waves Earthquakes cause seismic waves that provide valuable data.Measuring Earthquakes and data from seismic waves are recorded and interpreted together min e the location and size of Earthquakes.
Earthquakes are hazards and safety effects of an earthquake depend on its size and the types of structures and geology lna region.
The movement of the ground during an earthquake doesn’t directly cause many deaths or injuries.
Instead most injuries result from the collapse of buildings and other structures.
It is the shaking of the things people build that does the most damage as shown in Figure 18.