Four Instruments that are used to detect movement along faults are:1. Tiltmeter2. Creep meter3. Laser-ranging device4. Network of Earth-Orbiting satellites called GPS (global positioning system)
creep meters measures the amount that a fault has moved and new much the weight has moved against a measuring scale laser-ranging devices uses a laser to detect fault measurement tiltmeters measures...
Geologists have created Creep Meters, GPS Satellites, Range/ Laser devices, and Tilt Meters. These instruments help keep track of changes in the land surface and elevation. - Polly T. Denver, CO