Stress drops and its probability density functions calculated for 328 events from Prati-9 and Prati-29 seismicity cluster at The Geysers geothermal field with mesh spectral ratio technique. First published in work: Staszek M., Orlecka-Sikora B., Leptokaropoulos K., Kwiatek G., Martinez-Garzon P., 2017. Temporal static stress drop variations due to injection activity at The Geysers geothermal field, California. Geophysical Research Letters, 44, 7168-7176, https://doi.org/10.1002/2017GL073929. Later used by: Staszek M., Rudziński Ł., Kwiatek G., 2021. Spatial and temporal multiplet analysis for identification of dominant fluid migration path at The Geysers geothermal field, California. Scientific Reports, 11(1), 23908, https://doi.org/10.1038/s41598-021-03267-y, and Staszek, M., Rudziński, Ł., Leptokaropoulos K., 2025. Independence of Spatial and Temporal Static Stress-Drop Variability at The Geysers Geothermal Field. Seismological Research Letters (2025), 96 (6): 3556–3567, https://doi.org/10.1785/0220250001.