{"id":6790,"date":"2025-08-27T13:06:50","date_gmt":"2025-08-27T11:06:50","guid":{"rendered":"https:\/\/us.edu.pl\/instytut\/inoz\/?p=6790"},"modified":"2025-08-27T13:06:50","modified_gmt":"2025-08-27T11:06:50","slug":"pierwsze-zastosowanie-modeli-critical-to-point-do-analizy-sejsmicznosci-indukowanej-poza-gornictwem","status":"publish","type":"post","link":"https:\/\/us.edu.pl\/instytut\/inoz\/en\/2025\/08\/27\/pierwsze-zastosowanie-modeli-critical-to-point-do-analizy-sejsmicznosci-indukowanej-poza-gornictwem\/","title":{"rendered":"The First Application of Critical-to-Point Models to Non-Mining Induced Seismicity"},"content":{"rendered":"
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[vc_row][vc_column width=”1\/2″][vc_column_text]A PhD student at the Institute of Earth Sciences of the University of Silesia, M.Sc. Eng. Przemys\u0142aw Roma\u0144ski, together with his supervisors, Dr. Maciej Mendecki and Dr. Iwona Stan-K\u0142eczek, has published an article in the prestigious journal Engineering Geology<\/strong>. The publication, entitled The First Application of AMR Approach to Non-Mining Induced Seismicity: A Case Study from Water Injection Boreholes and Water Reservoirs<\/em>, presents the first application of the critical-to-point (AMR \u2013 Accelerated Moment Release) model to the analysis of seismicity induced by human activity not related to mining, but resulting from hydrological processes such as water injection into rock formations or the operation of water reservoirs.<\/p>\n The AMR model, based on cumulative seismic moment, is widely used in the study of natural seismicity; however, it has not yet been thoroughly tested in the context of induced seismicity, where it may provide more accurate results. In this study, three datasets related to hydraulic injections in Soultz (2000, 2003, 2004) and three datasets from artificial water reservoirs\u2014Czorsztyn, Monteynard, and Val D\u2019Agri\u2014were analyzed. For each site, the nature of seismic energy release was determined and then compared with injection rates and wellhead pressures in the Soultz boreholes, as well as with water-level fluctuations in the reservoirs. The results showed an increase in seismic activity related to water and brine injection into the rock mass, expressed in accelerated AMR-type curves. In contrast, no correlation was found between water levels in the reservoirs and the rate of seismic energy release. The study also examined the distribution of seismic events involved in the nucleation of mainshocks, relating these observations to geological and tectonic conditions. Additionally, a model describing the relationship between the rate of seismic moment release and wellhead pressure on a daily scale was developed, which, when compared with AMR models, provided a better understanding of the mechanisms of seismic energy release in the rock mass.<\/p>\n