Datasets are grouped in different levels. Two main levels exist. Raw data includes processed seismic data and ERT inversion results. Seismic mass estimation relies on amplitude differences and timeshifts. ERT inversion results have been converted from VTK. • Raw Seismic - 2009: Two datasets for Amplitude differences and Timeshifts - 2012: Two datasets for Amplitude differences and Timeshifts ERT - 2009: One dataset with [x,y,z,Resistivity,Volume,Active] - 2012: One dataset with [x,y,z,Resistivity,Volume,Active] • Processed *Seismic - Mass_2009 - Mass_2012 * ERT - Gridded_2009 - Gridded_2012 - Seismic_ERT_Mesh_1x1 - Seismic_ERT_Mesh_1x1_CDP_Adjusted_6.25m - Seismic_ERT_Mesh_1x1_CDP_Adjusted_12.5m The dataset was created within SECURe project (Subsurface Evaluation of CCS and Unconventional Risks) - https://www.securegeoenergy.eu/. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 764531 (ENER/H2020/764531/SECURe).