| directly | Point on Earth's surface _____ above an earthquake's focus. | 1 | 1 | true |
| Subduction | Answer: The process of an oceanic plate colliding with and descending underneath a continental plate. | 2 | 0 | false |
| movement | facture that occurs when rocks break and that results in relative _____ of opposing sides; can form as a result of compression.(being pulled apart) | 3 | 1 | true |
| Tsunami | Answer: Powerful seismic sea wave that bagins over an ocean floor earthquake, can reach 30m in height when approaching land, and can cause destruction in coastal areas. | 4 | 0 | false |
| earthquakes | Fault that makes California an area of high risk for _____. | 5 | 1 | true |
| Pyroclastic Flow | Answer: Another hazard for inhabitants of montserrat. They can occur anytime on any side of the volcano. | 6 | 0 | false |
| Seismograph | Answer: An instrument used to detect and record earthquakes. | 7 | 0 | false |
| Focus | Answer: Point deep inside Earth where energy is released, causing an earthquake. | 8 | 0 | false |
| caused | Describes the ability of the stuctures to stand up against the vibrations _____ by an earthquake. | 9 | 1 | true |
| surface | Cone-shaped hill or mountain formed when hot magma,solids,and gas erupts onto Earth's _____ through a vent. | 10 | 1 | true |
| record | Instument used to _____ seismic waves. | 11 | 1 | true |
| tectonic | Long crack, fissure, or trough that forms between _____ plates moving apart at plate boundaries. | 12 | 1 | true |
| Lithosphere | Answer: Rigid layer of Earth about 100km thick, made up of the crust and a part of the upper mantle. | 13 | 0 | false |
| energy | A measure of the _____ released by an earthquake. | 14 | 1 | true |
| Surface Waves | Answer: A vibration set off by a sudden movement along a fault in Earth's surface and spread across the occean in a series of long waves. | 15 | 0 | false |
| Richter Scale | Answer: Is based on measurments of amplitudes, or heights, of seismic waves as recorded on seismographs. | 16 | 0 | false |
| Epicenter | Answer: The area of the earth's surface that is derectly above the origi of an earthquake. | 17 | 0 | false |
| Mexico | Answer: This country's capital city was devastated by an earthquake in 1985. | 18 | 0 | false |
| Lava | Answer: Molten rock flowingn onto Earth's surface. | 19 | 0 | true |
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