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Many different instruments can be used to predict earthquakes. Creepmeter The creepmeter measures horizontal movements along a fault line which are continuous. Weight on the end of a piece of wire rises or falls with the fault movements. Strain meters This is a very sensitive instrument, able to detect the tiniest rock movements. It gets its energy from the solar panels. Laser light A beam of laser light is sent out from one side of a fault line to a reflector on the other side. Movements of the ground along the fault can be measured by calculating the time taken for the laser beam to be reflected. Back (Measuring) | Next (Reducing Damages) |