RHNC+2.4

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 * 2.4 Monitoring Faults**

Devices that Monitor Faults

 * Creep Meters
 * stretched wire
 * Laser-ranging Devices
 * reflector
 * Tiltmeters
 * water level scale
 * Satellite Monitors
 * radar images

Monitoring Risk in the United States

 * Geologists cannot determine when or where a quake will strike