| Network | Data Center | Description | Start Year | End Year |
|---|---|---|---|---|
| 4A |
|
Mapping the structure of the Duluth Complex & Animikie Basin | 2022 | 2024 |
| 4A |
|
SP Crater Network | 2016 | 2019 |
| 4A |
|
Darfield RAMP Aftershock Deployment, NZ | 2010 | 2011 |
| 4A |
|
Investigating mechanisms of subglacial hydrology and basal shear stress beneath Whillans Ice Stream using passive seismology | 2008 | 2008 |
| 4B |
|
Seismometer to Investigate Ice and Ocean Structure (SIIOS) Field Experiment: Hiawatha Crater, Greenland | 2022 | 2022 |
| 4E |
|
MARS/Testing of cabled broadband OBS using MARS test facility | 2010 | 2011 |
| 4F |
|
North Texas Earthquake Study: Venus (Johnson County), TX | 2015 | 2025 |
| 4F |
|
Askja 2007 | 2007 | 2011 |
| 4H |
|
Oklahoma State University Seismic Network | 2014 | 2017 |
| 4H |
|
Nabro Urgency Array | 2011 | 2012 |
| 4J |
|
Red sísmica Bioko | 2017 | 2024 |
| 4K |
|
Ruegen Cliff Observatory | 2017 | 2022 |
| 4K |
|
UAE transects across the Semail Ophiolite | 2014 | 2016 |
| 4N |
|
4N - New Jersey 2024 Earthquake Sequence | 2024 | 2025 |
| 4P |
|
Carnegie Washington Backyard Network | 2020 | 2021 |
| 4P |
|
NSF EarthScope USArray Magnetotelluric Transportable and Backbone Arrays | 2006 | 2018 |
| 4S |
|
STAK | 2018 | 2018 |
| 4T |
|
Texas Seismological Network | 2018 | 2099 |
| 4U |
|
São Jorge OBS Network | 2022 | 2023 |
| S |
|
Seismology at School Program, ETH Zurich | 2008 | 2599 |
| S1 |
|
Australian Seismometers in Schools | 2011 | 2599 |
| S8 |
|
SensorEra Seismic Network | 2023 | 2599 |
| SB |
|
UC Santa Barbara Engineering Seismology Network | 1989 | 2599 |
| SC |
|
New Mexico Tech Seismic Network | 1999 | 2599 |
| SE |
|
Southeastern Appalachian Cooperative Seismic Network | 1999 | 2599 |
| SF |
|
San Andreas Fault Observatory at Depth | 2002 | 2599 |
| SG |
|
International Geodynamics and Earth Tide Service | 1997 | 2599 |
| SH |
|
Shumagin-East Aleutian Network | 1981 | 1991 |
| SK |
|
Slovak National Seismic Network | 2002 | 2599 |
| SL |
|
Seismic Network of the Republic of Slovenia | 1990 | 2599 |
| SN |
|
Southern Great Basin Network | 1980 | 2599 |
| SP |
|
South Carolina Earth Physics Project | 2000 | 2004 |
| SR |
|
Seismic Research Observatory | 1974 | 1993 |
| SS |
|
SINGLE STATION | 1970 | 2599 |
| SV |
|
Servicio Nacional de Estudios Territoriales (SNET), El Salvador | 2004 | 2599 |
| SY |
|
Synthetic Seismograms | 1900 | 2599 |
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