CJKN+2.4

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Outline

 * ===Summary===
 * there are many devices that can record ground movements.
 * Devices that monitor faults
 * creep meters
 * used to detect horizontal


 * Laser-Ranging Devices
 * Shoots laser beam out, so it can detect tiny movements on the way back from a laser reflector.
 * Tiltmeters
 * Two bulbs connected by water tube, so when ground silts water inside build is not even
 * Satellite Monitors
 * Uses radar to make images of faults
 * Monitoring risks in the United States
 * Geologist determining earthquakes risk by finding where the active faults are and where past earthquakes have occured