microseismic instrument

microseismic instrument

[¦mī·krə¦sīz·mik ′in·strə·mənt]
(mining engineering)
An instrument for the study of roof strata and supports; it is inserted in holes, drilled at selected points, for listening to subaudible vibrations that precede rock failure.
References in periodicals archive ?
Pinnacle - performed the first ever microseismic mapping service in an active horizontal wellbore using an array of microseismic instruments deployed in a well in which a fracture was being performed.