| Network | Data Center | Description | Start Year | End Year |
|---|---|---|---|---|
| G |
|
GEOSCOPE - French Global Network of Seismological Broadband Stations | 1982 | 2599 |
| GE |
|
GEOFON Program, GFZ Potsdam, Germany | 1993 | 2599 |
| GF |
|
GONAF (Geophysical borehole Observatory at the North Anatolian Fault) | 2012 | 2599 |
| GL |
|
Guadeloupe Seismic and Volcano Observatory Network | 1950 | 2599 |
| GX |
|
GEOFON affiliated stations | 2019 | 2599 |
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