UTIG maintains the Hockley Seismic Station (station code HKT) in Hockley, Texas, which has used modern three-component broadband digital equipment since 1995. Data acquired from Hockley is forwarded to the Global Seismic Network (GSN) operated by the Incorporated Research Institutions for Seismology (IRIS). The Hockley Seismic Station is also a cooperating member of the United States National Seismic Network (USNSN). All data archived include hypocenter coordinates, the date and time of the earthquake, a reported magnitude estimate, a three-component seismogram, and the body wave phase arrival times.

UTIG’s Hockley seismometer, located in a chamber 470 meters below the surface in an active salt mine owned by United Salt Corporation, the Hockley seismometer is largely removed from the noise of natural and human activities that affect instruments on the surface.