Kwiatek, G., F. Bulut, M. Bohnhoff, and G. Dresen (2013). High-Resolution Analysis of Microseismicity Related to Hydraulic Stimulation in the Berlín geothermal field, El Salvador, in Proceedings of 4th EAGE Passive Seismic Workshop, Amsterdam, The Netherlands.
We published a new paper in the Journal of Geophysical Research: Solid Earth related to the hydraulic fracture experiments performed in 2015 in Äspö Hard Rock Laboratory, Sweden. Here are the highlights:
- We analyze source characteristics of picoseismicity (moment magnitudes smaller than -3.5!) related to hydraulic stimulations in Äspö Hard Rock Laboratory, Sweden.
- We show that spatio-temporal seismicity migration is controlled by changes in hydraulic (pressure times volume) energy.
- We present that total radiated seismic energy is very low with respect to injected volume, and increases with hydraulic energy rate.
Kwiatek, G., Martínez-Garzón, P., Plenkers, K., Leonhardt, M., Zang, A., Specht, S., et al. (2018). Insights Into Complex Subdecimeter Fracturing Processes Occurring During a Water Injection Experiment at Depth in Äspö Hard Rock Laboratory, Sweden. Journal of Geophysical Research: Solid Earth, DOI: 10.1029/2017JB014715. [ Article Page ]
We published another paper on induced seismicity, this time related to the clustering properties of induced seismicity observed in a couple of hydrothermal reservoirs. Here is the reference:
Martínez-Garzón, P., I. Zaliapin, Y. Ben-Zion, G. Kwiatek, and M. Bohnhoff (2018). Comparative Study of Earthquake Clustering in Relation to Hydraulic Activities at Geothermal Fields in California. Journal of Geophysical Research: Solid Earth, 123. DOI: 10.1029/2017JB014972 [ Article Page ]
Stephan Bentz published paper entitled “Sensitivity of Full Moment Tensors to Data Preprocessing and Inversion Parameters: A Case Study from the Salton Sea Geothermal Field”. The paper presents the results of investigation of mechanisms of approximately 80 small seismic events using two full seismic moment tensor inversion routines: the full waveform inversion and hybridMT code. The paper appeared in the Bulletin of Seismological Society of America.
I added two presentations from SSA Meeting in Reno in 2016, and recent EUROCK conference in Ostrava last year.
Kwiatek, G., P. Martínez-Garzón, K. Plenkers, M. Leonhardt, A. Zang, S. Specht, G. Dresen, and M. Bohnhoff (2017). Insights into subdecimeter fracturing processes occuring during the hydraulic fracture experiment in Äspö HRL, Sweden, in Proceedings of EUROCK conference, Ostrava, Czech Republic.[ Download PDF document (32.31 MB) ]
Kwiatek, G., and Y. Ben-Zion (2016). Theoretical Limits on Detectability of Small Earthquakes, Seismol. Res. Lett. 87, 510.[ Download PDF document (3.98 MB) ]