GR: German Regional Seismic Network

• Federal Institute for Geosciences and Natural Resources (BGR), Germany

The GR network is the national seismological network in Germany. It contains the German seismic backbone broad-band network (GRSN, German Regional Seismic Network) , the Graefenberg broad-band array, the short-period stations of the GERES array (German stations of the International Monitoring System, IMS, in the frame of the Comprehensive Test Ban Treaty, CTBT) and some associated stations, partly broad-band and partly short-period. It is operated by the Federal Institute for Geosciences and Natural Resources (BGR) in cooperation with a number of national partner institutions (see list below). The data of the GR network are continuous and not subject to any access restrictions. The first stations in this network were the array elements of Graefenberg installed between 1976 and 1980. The Graefenberg array is the first digital broad-band array on earth. It has a continuous data history from 1976 until today. The nation-wide network GRSN was added in 1991. It is growing in number of sites since then. By 2018 the GR network contains 47 broad-band backbone stations.

FDSN Web Services provide a common data access API for seismic data.

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