367
THE EARTHQUAKE UNIT
Jamaica Educational Seismic Network (JAESN): The JAESN include five AS-1 educational seismometers installed at 5 sites including 4 secondary schools and 1 at UWI. For the period, work was completed with basic maintenance and updates along with a training programme. At the end of July, 3 of 5 seismographs were collecting data, work is ongoing with the schools to restore service to the other 2. Challenges included site access, equipment availability and delays with the contact teachers. USGS Global Seismograph Network/Caribbean Tsunami Warning (MTDJ/PIKE): The Earthquake Unit maintains the USGS station at Mount Denham and accesses the earthquake data from the USGS Global Seismograph Network (GSN). For the reporting period, general site visits and maintenance work were completed with the station working well throughout the year. UNAVCO Continuously Operating Caribbean GPS Observational Network (COCONet) : The network include 3 permanent GPS units installed at the Pedro Cays, Morant Cays and at UWI. Currently, the station at UWI Mona is the only operational site transmitting data for Jamaica; the stations at Pedro Cays and Morant Cays are offline. Dialogue has resumed for scheduling visits to these sites for repairs with the support contractors. Comprehensive Nuclear Test Ban Treaty Organisation (CTBTO) National Data Centre: The EQU continued to operate the National Data Centre for the CTBTO (NDC_JM) throughout the period.
Figure 3: The Jamaica Seismograph Network and Strong Motion Accelerograph Stations
Made with FlippingBook flipbook maker