THE PASEIS SEISMIC NETWORK, A NEW NETWORK IN PENNSYLVANIA: LOGISTICS AND OPPORTUNITIES

The Pennsylvania Geological Survey instituted a seismic network (PASEIS) in conjunction with Penn State University in 2010. Initial funding from the Pennsylvania Department of Conservation and Natural Resources (DCNR) from 2007 to 2010 enable a 6-station permanent network to be developed. Additional funding from the DCNR for the Carbon Sequestration Technical Analysis (CSTA) enabled another 4 permanent stations to be purchased from the USArray as advanced-purchase TA stations, and equipment for twenty-six temporary broadband stations. The permanent stations are equipped with Guralp CMG-3T broadband seismometers and the equipment for the temporary stations includes RefTek RT130 data loggers and Nanometrics 120-second Compact Trillium sensors. The temporary equipment has been installed at 22 locations across the Commonwealth, mainly in state parks, to densify the station coverage provided by the USArray transportable array stations and the permanent PASEIS stations. The combination of permanent PASEIS, temporary PASEIS and USArray stations creates network with a nominal 30-40 km station spacing. Data from the temporary stations are being downloaded every 2-3 months, and so far the data return has exceeded 90%. With funding from the DCNR, the data are being used to develop a seismicity catalog. The temporary stations will be removed at the end of 2014 when the USArray stations are redeployed to Alaska.