| 4M (2016-2016) | 
                        
                            GEODES SP Crater Active Seismic Experiment 2016 | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4M (2018-2019) | 
                        
                            Los Angeles Basin Seismic Experiment | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4M (2022-2027) | 
                        
                            Seismic Campaign Around the Lombardian Pass network | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4N (2017-2022) | 
                        
                            China-Western Australia Seismic array | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4N (2023-2023) | 
                        
                            Fast Response Aftershock network for the Moroccan Earthquake 2023 | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4N (2024-2025) | 
                        
                            4N - New Jersey 2024 Earthquake Sequence | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4O (2018-2020) | 
                        
                            Longmen P | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4O (2022-2023) | 
                        
                            Sandia DAS | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4O (2024-2025) | 
                        
                            Aeolian Islands Network | 
                        
                             | 
                        
                            — | 
                        
                            — | 
                        
                    
                    
                
                    
                    
                        
                            | 4O (2026-2028) | 
                        
                            4O | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4P (2006-2018) | 
                        
                            NSF EarthScope USArray Magnetotelluric Transportable and Backbone Arrays | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4P (2019-2019) | 
                        
                            Mpala wildlife 2019 | 
                        
                             | 
                        
                            — | 
                        
                            — | 
                        
                    
                    
                
                    
                    
                        
                            | 4P (2020-2021) | 
                        
                            Carnegie Washington Backyard Network | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4P (2022-2026) | 
                        
                            AdriaArray Temporary Network: Italy - north, south | 
                        
                             | 
                        
                            — | 
                        
                            — | 
                        
                    
                    
                
                    
                    
                        
                            | 4Q (2017-2018) | 
                        
                            Dover, Delaware Aftershock Nodal Deployment | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4Q (2019-2021) | 
                        
                            GFZ contribution to the COSEISMIQ seismic network | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4Q (2022-2022) | 
                        
                            WHOLESCALE survey at San Emidio, Nevada, USA | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4Q (2023-2025) | 
                        
                            Receiver Function and Seismotectonics Analysis Northern Chile | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4R (2018-2020) | 
                        
                            SEA-SEIS (Structure, Evolution And SEISmicity of the Irish offshore) | 
                        
                             | 
                        
                            — | 
                        
                            — | 
                        
                    
                    
                
                    
                    
                        
                            | 4R (2021-2021) | 
                        
                            Tower Lake area, in western Canada. | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4R (2022-2027) | 
                        
                            GEOREAL | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4S (2018-2018) | 
                        
                            STAK | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4S (2019-2020) | 
                        
                            Active seismic imaging of a leaky CO2 fault system | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4S (2022-2023) | 
                        
                            Serra La Nave Distributed Acoustic Sensing Experiment (Etna) | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4S (2024-2025) | 
                        
                            SUBMERSE OBS deployment in SW Iberia, Portugal | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4T (2018-2099) | 
                        
                            Texas Seismological Network | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4U (2018-2019) | 
                        
                            Dry Alluvium Geology Gradiometry | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4U (2022-2023) | 
                        
                            São Jorge OBS Network | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4V (2011-2020) | 
                        
                            Towards ocean wave energy-potential quantification from a terrestrially-based seismic observation system (Wave-Obs) | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4V (2022-2023) | 
                        
                            Aurora Vent Field Gakkel Ridge | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4W (2022-2023) | 
                        
                            Coupling erosion, weathering, and hydrologic function in an active orogenic system | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4W (2025-2029) | 
                        
                            4W | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4X (2021-2023) | 
                        
                            GEObyIT seismic network in Oslo, Norway | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4Y (2022-2023) | 
                        
                            Unraveling the microseismic activity of the Puerto Aldea Fault, Chile | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4Z (2021-2022) | 
                        
                            Melbourne - ALiRT nodal deployment | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 4Z (2023-2023) | 
                        
                            Boise Geothermal Summer Camp | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2005-2009) | 
                        
                            Samoa Lithosphere Integrated Seismic-Petrologic Expedition | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2010-2012) | 
                        
                            Basin & Range, Pleasant Valley Faulting, Crustal-Scale Geometry of Active Continental Normal Faults | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2013-2013) | 
                        
                            Eastern North American Margin Explosives Test | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2014-2016) | 
                        
                            Subduction Reversal and the Ontong Java Plateau | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2018-2018) | 
                        
                            Rattlesnake Ridge 2018 v2 | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2019-2019) | 
                        
                            Shale Hills Critical Zone Observatory Mini-Array 2 Experiment | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2020-2020) | 
                        
                            Large Surface Explosion Coupling Experiment | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5A (2021-2030) | 
                        
                            Temporary deployments operated by industry partners of the Swiss Seismological Service. | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5B (2008-2008) | 
                        
                            HLP 3C Piggy Back RT130 | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5B (2009-2009) | 
                        
                            TaskForce L Aquila 2009 | 
                        
                             | 
                        
                            Germany | 
                        
                            — | 
                        
                    
                    
                
                    
                    
                        
                            | 5B (2016-2017) | 
                        
                            Tony Creek Dual Microseismic Experiment | 
                        
                             | 
                        
                             | 
                        
                            — | 
                        
                    
                    
                
                    
                    
                        
                            | 5B (2018-2019) | 
                        
                            Rutford Ice Stream Cooperative Research Program with British Antarctic Survey | 
                        
                             | 
                        
                             | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5B (2021-2022) | 
                        
                            ET Database of Belgium | 
                        
                             | 
                        
                            — | 
                        
                             DOI | 
                        
                    
                    
                
                    
                    
                        
                            | 5B (2023-2027) | 
                        
                            RUB Observational Geophysics Lab Deployment: Northwestern Peloponnese | 
                        
                             | 
                        
                            — | 
                        
                             DOI |