THEY+2.4

toc =2.4 Monitoring Faults=

Vocabulary
No Vocabulary In 2.4

Devices that Monitor Faults

 * geologists created instruments to record the ground movements along the fault
 * these instruments that geologists use measure the stress and deformation in the Earth's crust
 * Creep Meters**
 * Creep Meter measures horizontal movements from the ground
 * this tool measures the amount of how much the fault has moved
 * Laser Ranging Devices**
 * a tool using a laser to locate the smallest fault movements ever
 * can detect any movement of changes in the distance of the reflector
 * Tiltmeters**
 * this scale that measures the tilt of a fault
 * the Tiltmeter with with the water indicates how much the fault has tilted by the tilt of the water inside the scaled
 * Satellite Monitors**
 * instead of making instruments that are based on the ground they also concentrated to measure ground movements from space
 * this type of a instrument uses radio waves to see how big the fault
 * Monitoring Risk in the United States**
 * even if the geologist use all the technology in the world they still wouldn't predict the exact measurements of an earthquake
 * but geologists know that earthquakes store up energy inside a rock of a fault
 * geologist can also predict where the earthquake will strike by determining where faults are active