JG science 11.23#2
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9 terms
Terms | Definitions |
|---|---|
 Creep Meter | made of wire stretched across fault; measures horizontal movement in any direction |
| Tiltmeter | H2O in two bulbs connected by tube; measures vertical movement |
| Laser-ranging devices | made of a laser and reflector; measures horizontal movement |
| GPS satellites | a satellite in orbit and 2 receivers located on the opposite side of the fault; measures elevation or horizontal movement |
| Friction | is the force that opposes the motion of one surface as it moves across another surface |
| Liquefection | occurs when an earthquake violently shaking suddenly turns loose, soft soil into liquid mud |
| Aftershock | is an earthquake that occurs after a larger earthquake in the same area. |
| Tsunami | is the water displaced by the earthquake forming a large wave |
| Base-isolated building | is designed to reduce the amount of energy that reaches the building during an earthquake |
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