1. It is the measure of the amplitude of the seismic waves an earthquake's source produces. 2. The point on the earth's surface vertically above the focus, point in the crust where a seismic rupture begins. 3. Are giant waves caused by earthquakes or volcanic eruptions under the sea. 4. Narrow zones where rock masses move in relation to one another. 5. Any shaking of the ground caused by the passage of seismic waves. 6. It is caused by a movement of magma beneath the surface of the Earth. 7. The recording that makes by a seismograph. 8. Is one that occurs when the earth's crust breaks due to geological forces on rocks and adjoining plates that cause physical and chemical change. 9. An instrument used to detect and measure the earthquake. 10. Location within the Earth where the tectonic plate rocks start to break and where seismic energy is first released.​