Article
Multidisciplinary Sciences
A. Yaghoubi, M. B. Dusseault, Y. Leonenko
Summary: This study uses a probabilistic approach to assess the slip tendency of known faults in the compartmentalized Montney Formation. The results provide useful input for seismic hazard assessment and risk mitigation.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Ziyan Li, Derek Elsworth, Chaoyi Wang, L. Boyd, Z. Frone, E. Metcalfe, A. Nieto, S. Porse, W. Vandermeer, R. Podgorney, H. Huang, T. McLing, G. Neupane, A. Chakravarty, P. J. Cook, P. F. Dobson, C. A. Doughty, Y. Guglielmi, C. Hopp, M. Hu, R. S. Jayne, S. E. Johnson, K. Kim, T. Kneafsey, S. Nakagawa, G. Newman, P. Petrov, J. C. Primo, M. Robertson, V. Rodriguez-Tribaldos, J. Rutqvist, M. Schoenball, E. L. Sonnenthal, F. A. Soom, S. Sprinkle, C. Ulrich, C. A. Valladao, T. Wood, Y. Q. Zhang, Q. Zhou, L. Huang, Y. Chen, T. Chen, B. Chi, Z. Feng, L. P. Frash, K. Gao, E. Jafarov, S. Karra, N. Makedonska, D. J. Li Li, R. Pawar, N. Welch, P. Fu, R. J. Mellors, C. E. Morency, J. P. Morris, C. S. Sherman, M. M. Smith, D. Templeton, J. L. Wagoner, J. White, H. Wu, J. Moore, S. Brown, D. Crandall, P. Mackey, T. Paronish, S. Workman, B. Johnston, K. Beckers, J. Weers, Y. Polsky, M. Maceira, C. P. Chai, A. Bonneville, J. A. Burghardt, J. Horner, T. C. Johnson, H. Knox, J. Knox, B. Q. Roberts, P. Sprinkle, C. E. Strickland, J. N. Thomle, V. R. Vermeul, M. D. White, D. Blankenship, M. Ingraham, T. Myers, J. Pope, P. Schwering, A. Foris, D. K. King, J. Feldman, M. Lee, J. Su, T. Baumgartner, J. Heise, M. Horn, B. Pietzyk, D. Rynders, G. Vandine, D. Vardiman, T. Doe, J. McLennan, Y. S. Wu, J. Miskimins, P. Winterfeld, K. Kutun, M. D. Zoback, A. Singh, R. N. Horne, K. Li, A. Hawkins, Y. Zhang, E. Mattson, D. Elsworth, K. J. Im, Z. Li, C. J. Marone, E. C. Yildirim, J. Ajo-Franklin, A. Ghassemi, D. Kumar, V. Sesetty, A. Vachaparampil, H. F. Wang, H. Sone, K. Condon, B. Haimson, W. Roggenthen, C. Medler, N. Uzunlar, C. Reimers, M. W. McClure
Summary: This study emphasizes the importance of understanding the mechanisms controlling fluid injection-triggered seismicity in order to mitigate the impact of earthquakes. By conducting experiments and observations, researchers proposed a new framework to define maximum event magnitudes as a function of pre-existing critical stresses and fluid injection volume.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Marcello Gori, Vito Rubino, Ares J. Rosakis, Nadia Lapusta
Summary: This study reveals that fast fluid injection rates lead to dynamic ruptures at lower pressure levels and smaller spatial scales, while slow injection rates result in gradual nucleation processes consistent with accelerating slow slip behaviors. The presence of fluids influences friction properties and pore-pressure increase rate needs to be considered in nucleation processes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Geosciences, Multidisciplinary
J. B. Zhu, J. Q. Kang, D. Elsworth, H. P. Xie, Y. Ju, J. Zhao
Summary: The study shows that cyclic fluid injection can reduce the magnitude and total energy of induced earthquakes, providing a way to potentially control the size of induced seismic events.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Yinlin Ji, Hannes Hofmann, Ernest H. Rutter, Arno Zang
Summary: The influence of elevated temperature on injection-induced fault slip was studied through laboratory experiments. Results showed that elevated temperature promotes a more uniform fluid pressure distribution on the fault surface by reducing water viscosity, and higher temperature requires a larger perturbation force from injected fluid to reactivate the fault, resulting in a faster fault slip rate.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Geological
Federico Ciardo, Brice Lecampion
Summary: We investigate the problem of fluid injection at constant pressure in a 2D Discrete Fracture Network (DFN) with randomly oriented and uniformly distributed frictionally-stable fractures. We show that the hydro-mechanical response of the fractured rock mass is governed by a dimensionless parameter T associated with favourably oriented fractures. Specifically, low values of T lead to fast migration of aseismic slip from injection point due to elastic stress transfer on critically stressed fractures, while marginal pressurized conditions result in the slipping patch lagging behind the pressurized region and the percolation number affecting the medium's response.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
Victor Vilarrasa, Silvia De Simone, Jesus Carrera, Antonio Villasenor
Summary: The offshore Castor Underground Gas Storage project was halted after gas injection triggered three M4 earthquakes in the crystalline basement, mechanisms of which remain unknown but possibly related to critically stressed fault and gas buoyancy. Understanding triggering mechanisms is crucial for forecasting induced seismicity in deep underground operations.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Mauricio Fuentes, Sebastian Riquelme
Summary: In this study, the local tsunami hazard caused by seismic sources is evaluated using a stochastic framework. Assumptions such as static passive generation, constant rake angle, and source centroid are relaxed, and spatial uncertainties are modeled in a large set of scenarios. The proposed methodology is easy to implement and can be combined with other sources or hazards. Application in the Kuril-Kamchatkah trench demonstrates its simplicity and ability to produce hazard maps that can be replicated worldwide.
SCIENTIFIC REPORTS
(2022)
Article
Geochemistry & Geophysics
Martina Raggiunti, Derek Keir, Carolina Pagli, Aude Lavayssiere
Summary: The study found that earthquakes within the Main Ethiopian Rift are likely generated by fluid flow along faults, while earthquakes at the rift margin are caused by tectonic motion of the plates.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2023)
Article
Geochemistry & Geophysics
Hongyu Yu, Honn Kao, Bei Wang, Ryan Visser
Summary: Long-term fluid injections expedite the development of subsurface shear structures, highlighting the importance of considering local/regional Riedel shear structures in the assessment of overall seismic hazard.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Multidisciplinary Sciences
Yuta Miyazaki, Masashi Usawa, Shuma Kawai, Jingzu Yee, Masakazu Muto, Yoshiyuki Tagawa
Summary: This study investigates the fluid-tissue interaction of needle-free injection through evaluating the dynamics of the induced cavity in body-tissue simulant and the resulting mechanical stress field. The research found that a focused microjet generates low-intensity shear stress, while a non-focused microjet exerts high-intensity compressive stress on the tissue simulant.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Ryan Schultz, Gregory C. Beroza, William L. Ellsworth
Summary: The study developed a risk-informed strategy for selecting red-light thresholds for immediate well shut-in during hydraulic fracturing operations in the Eagle Ford shale in southern Texas. By simulating impacts, it was found that impacts were greater in the northeast and smaller in the southwest of the area, driven by concentrations of population density. The method provides guidance for managing induced seismicity risks through traffic light protocols.
Article
Geosciences, Multidisciplinary
Javad N. Rashidi, Mehdi Ghassemieh
Summary: This paper proposes the application of three machine learning techniques to predict the magnitude of induced earthquakes caused by underground injection. The models are trained on earthquake and injection data from the Central Oklahoma region in the US, and their input data are balanced using a data-level approach. The results show that balancing the training data and considering the injection volume in the nine months before the earthquake prediction period improves the performance of the models. Among the investigated models, the support vector machine model trained on balanced data performs the best, predicting an average of 72% of earthquake magnitude classes.
Article
Multidisciplinary Sciences
Yixin Liu, Chuanhua Xu, Jiang Xu, Xuemin Zeng
Summary: The injection of fluids into fault gouges can disturb stress conditions and increase the risk of earthquakes. This study investigates the effect of water injection and shear deformation on the hydro-mechanical characteristics of fault gouges. The results show that injecting water significantly reduces the maximum shear strength, and the effect varies with the gouge fill material. Shear deformation increases the inhomogeneity of thickness distribution and leads to non-uniform distribution of injected water along the fault.
SCIENTIFIC REPORTS
(2022)
Article
Geosciences, Multidisciplinary
Iman R. Kivi, Auregan Boyet, Haiqing Wu, Linus Walter, Sara Hanson-Hedgecock, Francesco Parisio, Victor Vilarrasa
Summary: In order to improve our understanding of induced seismicity and manage associated risks, it is necessary to examine seismic data from reported cases. However, gathering and collating these data is challenging and time-consuming. We have developed a publicly available database that contains 158 datasets of induced seismicity caused by various subsurface energy-related applications worldwide, aiming to advance research in seismic hazard forecasting and mitigation.
EARTH SYSTEM SCIENCE DATA
(2023)
Article
Geochemistry & Geophysics
Grace Barcheck, Geoffrey A. Abers, Aubreya N. Adams, Anne Becel, John Collins, James B. Gaherty, Peter J. Haeussler, Zongshan Li, Ginevra Moore, Evans Onyango, Emily Roland, Daniel E. Sampson, Susan Y. Schwartz, Anne F. Sheehan, Donna J. Shillington, Patrick J. Shore, Spahr Webb, Douglas A. Wiens, Lindsay L. Worthington
SEISMOLOGICAL RESEARCH LETTERS
(2020)
Article
Geochemistry & Geophysics
Steven M. Plescia, Anne F. Sheehan, Seth S. Haines, Lindsay L. Worthington, Scott Cook, Justin S. Ball
Summary: This study demonstrates successful crustal imaging using teleseismic P-wave coda autocorrelation with modern large-array seismic data, confirming previous interpretations of crustal structures in the study area.
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2021)
Article
Geochemistry & Geophysics
Robert J. Skoumal, J. Ole Kaven, Andrew J. Barbour, Charles Wicks, Michael R. Brudzinski, Elizabeth S. Cochran, Justin L. Rubinstein
Summary: On March 26, 2020, a M 5.0 earthquake occurred in the Delaware Basin, Texas, possibly induced by nearby wastewater disposal operations. If disposal operations continue unaltered, seismicity rates in the region surrounding the M 5.0 earthquake will likely continue to increase in the future.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geochemistry & Geophysics
Jenny S. Nakai, Anne F. Sheehan, Rachel E. Abercrombie, Donna Eberhart-Phillips
Summary: Using seismometers on the ocean floor and on land, seismic attenuation near the Hikurangi trench offshore New Zealand was investigated. The study revealed high attenuation above a recurring shallow slow-slip event and within the subducting Hikurangi Plateau. The presence of high temperatures, melt, fluids, and fractures in the region was inferred through the analysis of seismic attenuation.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Astronomy & Astrophysics
M. J. Hossen, Iyan E. Mulia, David Mencin, Anne F. Sheehan
Summary: The study found that using ship elevation data for data assimilation can accurately recover tsunami models, while using ship velocity data alone cannot achieve this effect. Regarding the spatial distribution of ships, a 20 km gap layout can ensure accuracy and computational efficiency. The highest accuracy in tsunami forecasting is obtained when a sufficient number of ship data are available.
EARTH AND SPACE SCIENCE
(2021)
Article
Geochemistry & Geophysics
Jefferson Yarce, Anne Sheehan, Steven Roecker, Kimihiro Mochizuki
Summary: Researchers investigated the seismic velocity structure of the Hikurangi margin in New Zealand and discovered two high Vp/Vs anomalies, which may be related to high pore fluid pressures from subducted sediments and could trigger slow slip events. The findings suggest that subduction processes in the Hikurangi margin are highly dependent on physical features such as subducted seamounts and fluid-rich sediments.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geochemistry & Geophysics
David R. Shelly, Kevin Mayeda, Justin Barno, Katherine M. Whidden, Morgan P. Moschetti, Andrea L. Llenos, Justin L. Rubinstein, William L. Yeck, Paul S. Earle, Rengin Gok, William R. Walter
Summary: Earthquake magnitudes are widely used to measure earthquake size. However, for small earthquakes, there is difficulty in measuring their seismic moments reliably, leading to inconsistent measurement scales and biased magnitudes. In a case study, it was found that conversion relationships used to convert other magnitudes to moment magnitude often increase the bias. This has significant implications for seismic hazard analysis, as it affects seismicity rates and b-values. Therefore, caution should be exercised when dealing with magnitudes of small earthquakes and their associated statistics.
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2022)
Article
Geochemistry & Geophysics
Amandine Amemoutou, Patricia Martinez-Garzon, Grzegorz Kwiatek, Justin L. Rubinstein, Marco Bohnhoff
Summary: The significant increase in seismicity rates in the USA over the past 10 years is attributed to the injection of wastewater from oil and gas production. A study on induced earthquakes in southern Kansas reveals that their source mechanisms are related to injection activity and local stress fields. The orientation of fault geometries in relation to the stress field show that small stress perturbations caused by water injection could lead to failure.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geochemistry & Geophysics
Yuriko Iwasaki, Kimihiro Mochizuki, Motoko Ishise, Erin K. Todd, Susan Y. Schwartz, Hubert Zal, Martha K. Savage, Stuart Henrys, Anne F. Sheehan, Yoshihiro Ito, Laura M. Wallace, Spahr C. Webb, Tomoaki Yamada, Masanao Shinohara
Summary: This study applies S-wave splitting and polarization analysis methods to continuous OBS waveform data and identifies continuous tremor activity occurring at the end of the 2014 slow slip event. The tremors are generated around a bend in the slow slip contours and at the landward edge of a subducted seamount.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geochemistry & Geophysics
Colin N. Pennington, Hilary Chang, Justin L. Rubinstein, Rachel E. Abercrombie, Nori Nakata, Takahiko Uchide, Elizabeth S. Cochran
Summary: This study investigates the sensitivity of slip inversions to station distribution and choice of EGF. By using a dense distribution of geophones, accurate slip inversions are achieved, allowing for the exploration of the sensitivity of slip inversions. Results show that station distributions with uniform coverage of azimuth and distance can retrieve the overall pattern of slip, but the estimated amplitude of slip can vary. The choice of EGF can also shift the location and amplitude of resolved slip areas.
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2022)
Article
Geochemistry & Geophysics
Kaiwen Wang, William Ellsworth, Gregory C. Beroza, Weiqiang Zhu, Justin L. Rubinstein
Summary: This study introduces an alternative workflow based on deep learning to reconstruct earthquake catalogs from analog data images without conversion. By training a convolutional neural network, the approach successfully detects twice the number of events reported in the original catalog and achieves consistent performance in earthquake detection.
SEISMOLOGICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Chuanming Liu, Shane Zhang, Anne F. F. Sheehan, Michael H. H. Ritzwoller
Summary: Comprehensive observations of surface wave anisotropy are conducted across Alaska and the Aleutian subduction zone to improve understanding of its tectonics, mantle dynamics, and earthquake risk. Using data from various sources, including earthquakes and ambient noise, researchers create tomographic maps that provide insights into the crustal and uppermost mantle structure of the region.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geochemistry & Geophysics
Jefferson Yarce, Anne F. Sheehan, Steven Roecker
Summary: Slow slip events occur every 18-24 months in the northern Hikurangi margin of New Zealand and last for several weeks. The Regressive ESTimator algorithm was used to detect seismic events and determine the relationship between slow slip events and earthquakes. The auto-detector found more than three times the number of events compared to manual detection. An increase in earthquake occurrence rate was observed during the 2014 slow slip event.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2023)
Article
Geochemistry & Geophysics
Scott M. Stokes, Shemin Ge, Megan R. M. Brown, Elizabeth A. Menezes, Anne F. Sheehan, Kristy F. Tiampo
Summary: The Raton Basin in Southern Colorado and Northern New Mexico has experienced a significant increase in seismic activity over the last few decades, possibly due to an increase in wastewater disposal from coal-bed methane production. The presence of high-rate injection wells near the most seismically active regions suggests a possible correlation. A pore pressure model was developed to study the relationship between pore pressure diffusion and induced seismicity, particularly focusing on the Trinidad fault zones. The model suggests that the early-stage seismicity in the Raton Basin was likely triggered by pore pressure diffusion.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geochemistry & Geophysics
Steven M. Plescia, Anne F. Sheehan, Seth S. Haines
Summary: Through dense seismic arrays offshore and onland, researchers found that active-source seismic interferometry can create virtual sources and reveal body-wave reflections. Virtual sources offshore produced strong reflections, while onland sources lacked usable reflections, explored reasons for differences through selective stacking approaches. Incorporating seismic wave travel directionality and stationary phase corrections can lead to improvements, while selective exclusion of potentially problematic source-receiver pairs can yield better results. Geometric adjustments to active-source interferometry methods have utility for dense-nodal-array surveys common in academic studies.
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
(2022)
