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Keywords: earthquake
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Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0037
... chlorite content. Our results have important implications in understanding the frictional stability of epidote/chlorite-filled granite faults and its influence on seismicity in deep geothermal reservoirs inhabiting the shallow crust. 1. INTRODUCTION The moment magnitude ( M w ) 5.5 Pohang earthquake...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1043
... interfaces. sedimentary rock plate tectonics produced water discharge produced water structural geology subsurface storage seismicity earthquake reservoir geomechanics operation formation rock type geological subdiscipline co 2 geologist waterflooding enhanced recovery injection...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1068
..., and a shallow brittle-ductile transition. These conditions generally limit the maximum magnitudes of earthquakes, whether tectonic or induced. Furthermore, seismicity often aids in the identification of prominent fluid and heat pathways within the geothermal resource. Engineered or Enhanced Geothermal systems...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0976
... ABSTRACT: In this paper, the support vector machine model (SVM) was used to classify the earthquakes and blasting from the files recorded by an open pit copper mine seismic network. The database cleaning of false positive records (vibrations records not from blasting) must be supervised...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1183
... algorithm earthquake machine learning application co 2 hydraulic diffusivity netl 2023 structural geology risk management geological subdiscipline diffusivity department ccus carbon storage plane operation ARMA 24 1183 Machine Learning Application for CCUS Carbon Storage: Fracture Analysis...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0302
... ABSTRACT: The distribution of local stress regime has a significant influence on natural earthquakes, while its role in controlling injection-induced fault reactivation and associated seismicity remains poorly understood. This paper investigates the relationship between fault aseismic slip...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0470
... ABSTRACT: Rock masses are subjected to simple shear mode deformation during earthquake. Currently, there is no standardized simple shear test method for rocks in Japan. The authors propose a new test method, the simple shear test of a prismatic rock specimen using torsional shearing...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0497
... injection during operation of an Enhanced Geothermal Systems (EGS) triggers seismic events of different extents with a worst scenario being damaging earthquakes (Elsworth, 2013). This seismic risk is of serious public concern and can cause irreversible damage. For example, Pohang (South Korea) and Basel...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0686
... ABSTRACT: Fluid-induced shear reactivation of pre-stressed faults poses a project terminating risk during reservoir stimulation in geothermal, CO 2 sequestration, wastewater disposal injection and hydraulic fracturing operations. Micro-earthquakes (MEQs) can be tolerated but fluid injection...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0670
... geology reservoir geomechanics sandfill plate tectonics mechanism seismicity closure dyke earthquake johannesburg boundary cut 37 geologist native element mineral geological subdiscipline south africa south africa leite deformation rock type reservoir characterization excavation...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0708
... al., 2016; Gao et al., 2018). Understanding the state of stress in accretionary wedges is crucial for the study of earthquake mechanics in subduction zones (e.g., Brodsky et al., 2017; Huffman and Saffer, 2016; Suppe, 2007). It provides insights for earthquake occurrence, large or slow-slip events...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0813
... small to be captured by InSAR. plate tectonics geologist structural geology reservoir geomechanics san emidio reservoir characterization earthquake shutdown magnitude seismicity mechanism focal mechanism assumption scenario nevada kpa microearthquake geological subdiscipline...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0299
... ABSTRACT Considering the destruction caused by the directivity effect of near-fault ground motion, finite difference models with different source modes are established to explain the directivity effect mechanism, the directivity characteristics of ground motion in the 2016 Kumamoto earthquake...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0698
... geological subdiscipline mass movement production control kocaeli cable optical fiber cable upstream oil & gas reservoir surveillance reservoir characterization optical fiber system study area geologist asia government rkiye strain measurement strain value earthquake application rock...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0636
... ABSTRACT Underground infrastructures can be adversely affected by earthquake-induced rock engineering vibration causing damage problems. These impacts are even more significantly affected for large underground caverns due to the large span and complex structures. Currently, time-history...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0638
... tell the kinematic process of fault failure (seismic or aseismic slip). An alternative model for simulating time-dependent earthquake cycles is the rate-and-state friction model, which provides evolving friction depending on slip rate and slip history. To explore the dynamics and stability of fault...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0751
... experiment injection fluid stress drop ae sensor earthquake geophysical research seismic energy corner frequency viscosity injection fluid hf experiment viscosity injection seismic efficiency geological subdiscipline microseismicity sensor ae event solid earth granite ARMA 23 0751 Energy...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0052
... environment and risk triggering damaging earthquakes. Furthermore, we anticipate that the microsiesmicity that does occur will be limited to the volume of rock that is defined by the geometry of the boundary-well cage. If designed and implemented correctly, we expect that the signature of fracture caging...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0846
... at each project site is being estimated due to both natural and induced seismicity. The former provides a baseline from which to evaluate the additional hazard that may be imposed by induced earthquakes. In Step 6, a robust estimate of the seismic risk is being developed prior to the project...

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