| Network | Data Center | Description | Start Year | End Year |
|---|---|---|---|---|
| NA |
|
Caribbean Netherlands Seismic Network | 2006 | 2599 |
| NC |
|
USGS Northern California Regional Network | 1967 | 2999 |
| NL |
|
Netherlands Seismic and Acoustic Network | 1993 | 2599 |
| NN |
|
Nevada Seismic Network () | 1974 | 2999 |
| NP |
|
United States National Strong-Motion Network | 1975 | 2999 |
| NR |
|
|
|
|
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