GEOFON

No network with code 2D in the given year (2013). Use a year to disambiguate:

• 2D:2018 (2018–2019) DESTRESS - Demonstration of soft stimulation treatments of geothermal reservoirs
• 2D:2021 (2021–2032) Eifel Longterm Backbone Seismic Monitoring

Or choose from the complete list.