| 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 |
| MB |
|
Montana Regional Seismic Network | 1996 | 2599 |
| MC |
|
Montserrat CALIPSO Borehole Network | 2008 | 2599 |
| MG |
|
Permanent Seismic Network of Queretaro State, Mexico | 2003 | 2599 |
| MH |
|
Mobile Earthquake Recording in Marine Areas by Independent Divers | 2003 | 2599 |
| MI |
|
USGS Northern Mariana Islands Network | 2000 | 2599 |
| MM |
|
Myanmar National Seismic Network | 2016 | 2599 |
| MN |
|
Mediterranean Very Broadband Seismographic Network | 1988 | 2599 |
| MP |
|
Iraqi Seismic Observatory | 2014 | 2599 |
| MQ |
|
Martinique Seismic and Volcano Observatory Network | 1935 | 2599 |
| MR |
|
Mauritius Seismic Network | 2000 | 2599 |
| MS |
|
Singapore Seismological Network | 1996 | 2599 |
| MU |
|
Miami University Seismic Network | 2005 | 2599 |
| MX |
|
Mexican National Seismic Network | 1970 | 2599 |
| MY |
|
Malaysian National Seismic Network | 2003 | 2599 |
| MZ |
|
National Seismic Network of Mozambique | 2022 | 2599 |
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