Creepmeter

A creepmeter is an instrument that monitors the slow surface displacement of an active geologic fault in the earth. Its function is to record the slow, a seismic slip between earthquakes. The measurement range of a creepmeter is usually limited to 10-30 mm. Approximately 30 creepmeters are in operation in California—most are operated by the United States Geological Survey (USGS), but nine are maintained by the University of Colorado.

References

• University of Colorado