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System Upgrade 2026-07-02
The fdsn.org website will undergo a scheduled upgrade on 2026-07-02. Some operations may be paused during the process, and live data such as user sessions may be reset.
This message will be updated with details as the update time approaches.
Network Codes
The following network codes are assigned by the FDSN to facilitate unique identifiers for seismological data streams.
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| Network Code | Network Name | Operated By | Deployment | DOI |
|---|---|---|---|---|
| WK | Wake Island Hydrophone Array | United States of America | — | |
| WM | Western Mediterranean Seismic Network | DOI | ||
| WN | WINSENT | — | DOI | |
| WP | Rete Sismica e Accelerometrica (OGVL Osservatorio Geofisico Valle del Liri) | — | DOI | |
| WR | California Division of Water Resources | — | ||
| WS | Seismic Network of Repuplika Srpska | Bosnia and Herzegovina | — | |
| WU | The Southern Ontario Seismic Network | — | ||
| WW | Idaho Seismic Network | — | DOI | |
| WY | Yellowstone National Park Seismograph Network | DOI |
Network Data API
The network data shown here is also available programmatically through a web service API.