Academic literature on the topic 'Origin of seismicity'

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Journal articles on the topic "Origin of seismicity"

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Lukk, A. A., V. G. Leonova, and A. Ya Sidorin. "Revisiting the Origin of Seismicity in Fennoscandia." Izvestiya, Atmospheric and Oceanic Physics 55, no. 7 (2019): 743–58. http://dx.doi.org/10.1134/s000143381907003x.

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Vasudevan, K., D. W. Eaton, and J. Davidsen. "Intraplate seismicity in Canada: a graph theoretic approach to data analysis and interpretation." Nonlinear Processes in Geophysics 17, no. 5 (2010): 513–27. http://dx.doi.org/10.5194/npg-17-513-2010.

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Abstract. Intraplate seismicity occurs in central and northern Canada, but the underlying origin and dynamics remain poorly understood. Here, we apply a graph theoretic approach to characterize the statistical structure of spatiotemporal clustering exhibited by intraplate seismicity, a direct consequence of the underlying nonlinear dynamics. Using a recently proposed definition of "recurrences" based on record breaking processes (Davidsen et al., 2006, 2008), we have constructed directed graphs using catalogue data for three selected regions (Region 1: 45°−48° N/74°−80° W; Region 2: 51°−55° N/
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Goltz, C. "Decomposing spatio-temporal seismicity patterns." Natural Hazards and Earth System Sciences 1, no. 1/2 (2001): 83–92. http://dx.doi.org/10.5194/nhess-1-83-2001.

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Abstract. Seismicity is a distributed process of great spatial and temporal variability and complexity. Efforts to characterise and describe the evolution of seismicity patterns have a long history. Today, the detection of changes in the spatial distribution of seismicity is still regarded as one of the most important approaches in monitoring and understanding seismicity. The problem of how to best describe these spatio-temporal changes remains, also in view of the detection of possible precursors for large earthquakes. In particular, it is difficult to separate the superimposed effects of dif
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Goertz-Allmann, Bettina P., and Stefan Wiemer. "Geomechanical modeling of induced seismicity source parameters and implications for seismic hazard assessment." GEOPHYSICS 78, no. 1 (2013): KS25—KS39. http://dx.doi.org/10.1190/geo2012-0102.1.

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We simulate induced seismicity within a geothermal reservoir using pressure-driven stress changes and seismicity triggering based on Coulomb friction. The result is a forward-modeled seismicity cloud with origin time, stress drop, and magnitude assigned to each individual event. Our model includes a realistic representation of repeating event clusters, and is able to explain in principle the observation of reduced stress drop and increased [Formula: see text]-values near the injection point where pore-pressure perturbations are highest. The higher the pore-pressure perturbation, the less criti
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Khutorskoy, Mikhail, Emil Botev, Valentina Protopopova, Aleksey Benderev, and Elena Tevelova. "Heat Flow and Seismicity in Bulgaria." Engineering Geology and Hydrogeology 34, no. 1 (2020): 53–65. http://dx.doi.org/10.52321/igh.34.1.53.

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The study of intra-earth processes requires a comprehensive approach, which should be based on the understanding different nature and origin depth of terrestrial processes. In this regard, the problem of the relationship between seismicity and heat flow in the lithosphere is of interest. We analyzed seismic observation data in Bulgaria from 1981 to 2018 using statistical methods. A significant correlation was found between the heat flow and the earthquakes magnitude, as well as between the thickness of thermal lithosphere and the magnitude. To assess the released friction heat and hydrodynamic
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Ellsworth, William L., Andrea L. Llenos, Arthur F. McGarr, et al. "Increasing seismicity in the U. S. midcontinent: Implications for earthquake hazard." Leading Edge 34, no. 6 (2015): 618–26. https://doi.org/10.1190/tle34060618.1.

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Earthquake activity in parts of the central United States has increased dramatically in recent years. The space-time distribution of the increased seismicity, as well as numerous published case studies, indicates that the increase is of anthropogenic origin, principally driven by injection of wastewater coproduced with oil and gas from tight formations. Enhanced oil recovery and long-term production also contribute to seismicity at a few locations. Preliminary hazard models indicate that areas experiencing the highest rate of earthquakes in 2014 have a short-term (one-year) hazard comparable t
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Candela, Thibault, Maarten Pluymaekers, Jean-Paul Ampuero, et al. "Controls on the spatio-temporal patterns of induced seismicity in Groningen constrained by physics-based modelling with Ensemble-Smoother data assimilation." Geophysical Journal International 229, no. 2 (2021): 1282–308. http://dx.doi.org/10.1093/gji/ggab497.

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SUMMARY The induced seismicity in the Groningen gas field, The Netherlands, presents contrasted spatio-temporal patterns between the central area and the south west area. Understanding the origin of this contrast requires a thorough assessment of two factors: (1) the stress development on the Groningen faults and (2) the frictional response of the faults to induced stresses. Both factors have large uncertainties that must be honoured and then reduced with the observational constraints. Ensembles of induced stress realizations are built by varying the Poisson's ratio in a poro-elastic model inc
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Paudyal, Harihar. "Fluctuation of seismic activity associated with 1999 Chamoli earthquake." Himalayan Physics 2 (July 31, 2011): 11–15. http://dx.doi.org/10.3126/hj.v2i2.5203.

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The Chamoli earthquake of March 28, 1999 (Mb 6.6, Origin time: 19:05:12, epicenter at 30.5° N 79.4° E and Focal depth 23 km) occurred in the Himalayan front arc which caused severe damage in the region. Anomalous seismic activity associated with this recent devastating earthquake in the Central Himalaya region in an area bounded by 30.0°-31.0° N and 79.0°-80.0° E have been studied using seismicity data from 1980-2000. The preparatory zone is delineated using the temporal and the spatial distribution of earthquakes, considering the events with cutoff magnitude mb ≥ 4.3. Daily number of events a
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Valenzuela-Malebrán, Carla, Simone Cesca, Sergio Ruiz, et al. "Seismicity clusters in Central Chile: investigating the role of repeating earthquakes and swarms in a subduction region." Geophysical Journal International 224, no. 3 (2020): 2028–43. http://dx.doi.org/10.1093/gji/ggaa562.

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SUMMARY Seismicity along subduction interfaces is usually dominated by large main-shock–aftershock sequences indicative of a continuum distribution of highly coupled large asperities. In the past decades, however, the increased resolution of seismic catalogues at some subduction zone seems to indicate instead a more complex rheological segmentation of the interface. Large and megathrust earthquake ruptures seem interspersed among regions of low seismic coupling and less stress buildup. In this weaker zone, the strain is primarily released via a combination of moderate-size swarm-like seismicit
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Shestopalov, I. P., and E. P. Kharin. "Relationship between solar activity and global seismicity and neutrons of terrestrial origin." Russian Journal of Earth Sciences 14, no. 1 (2014): 1–10. http://dx.doi.org/10.2205/2014es000536.

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Dissertations / Theses on the topic "Origin of seismicity"

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Namjesnik, Dalija. "Origin of seismicity related to a flooded abandoned coal mining district at Gardanne, Provence, France." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0116.

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La fermeture des mines et la gestion post-minière constituent aujourd’hui un défi majeur car les problèmes engendrés peuvent impacter grandement la sécurité publique. Lorsque les mines sont abandonnées, les systèmes de pompage des eaux souterraines sont généralement arrêtés et l’eau qui remplit progressivement les vides peut affecter la stabilité mécanique des structures souterraines. En général, les mécanismes de la sismicité observée dans les districts post-miniers inondés sont mal compris. Cette thèse porte sur l’étude de la sismicité enregistrée à la suite de l’ennoyage de l’ancien bassin
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Arnott, Frank Walter. "Seismicity in the Welkom Area, O.F.S. (with special reference to the origin of the 1976-12-8 event)." Thesis, 2014. http://hdl.handle.net/10539/15737.

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Book chapters on the topic "Origin of seismicity"

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Gerya, Taras V. "Origin, Evolution, Seismicity, and Models of Oceanic and Continental Transform Boundaries." In Plate Boundaries and Natural Hazards. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119054146.ch3.

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Doglioni, Carlo. "Origin of Seismicity in Italy as a Clue for Seismic Hazard." In Lecture Notes in Civil Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-21187-4_10.

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Dost, Bernard, Elmer Ruigrok, Jesper Spetzler, and Pauline Kruiver. "Natural and induced seismicity." In Geology of the Netherlands. Amsterdam University Press, 2025. https://doi.org/10.5117/9789463728362_ch22.

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Abstract Natural seismicity in the Netherlands is mainly associated with large faults in the south of the country. These faults are part of the Roer Valley Rift System, the northwestern extension of the Rhine rift system. Their style of faulting, as concluded from the analysis of seismicity, is dominantly normal with a small strike-slip component and is in accordance with the current stress pattern. South of the Roer Valley Rift System, smaller earthquakes suggest the reactivation of strike-slip faults and thrust faults along the Brabant Massif. The effects of natural seismicity have been mode
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Lowrie, William. "4. Seismicity—the restless Earth." In Geophysics: A Very Short Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198792956.003.0004.

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Hundreds of thousands of earthquakes occur worldwide each year, but most of them go unnoticed. Only a few are very destructive. Most earthquakes have a tectonic origin and happen in well-defined, relatively narrow seismic zones. ‘Seismicity—the restless Earth’ first describes the elastic rebound model that explains how an earthquake occurs. There are two measures of the size of an earthquake: its magnitude and intensity. Magnitude is a measure of the energy released by the earthquake classified by the Richter scale, while intensity is a qualitative measure based on observed effects using a twe
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Rajan, S. Ravi. "Environment and Development in India." In China–India. British Academy, 2014. http://dx.doi.org/10.5871/bacad/9780197265673.003.0011.

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The purpose of this chapter is to explore some of the key debates about India’s environment and development. It begins by summarising some of the country’s key sustainability indicators. It then examines the natural resource management sector, focusing on forestry and irrigation. Finally, it explores the threats posed by environmental risks of technological origin – by considering five high profile cases – the Bhopal Gas Disaster of 1984; the controversy over Genetically Modified Organisms (GMOs); the seismicity concerns of the TEHRI dam; the handling of pollution and transportation policy in
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Gatinsky, Yuriy, and Tatiana Prokhorova. "Tentative Intracontinental Seismic Activity in South Siberia and Russian Far East." In Earthquakes - From Tectonics to Buildings. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95073.

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Overwhelming majority of minor, strong and major earthquakes in south Siberia and Russian Far East coincide with relatively narrow intracontinental zones on the boundaries of blocks and lithosphere plates. The geodynamic activity of these zones connects, besides the plate interaction, with deep lithosphere structure and anomalies of the different geophysical fields as well as with blocks’ kinematics. Authors’ located areas of the seismic centers origin and the possible manifestations of the high seismicity based on the distribution of the maximal volumes of releasing seismic energy. We establi
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Beck, Christian. "Lake sediments as late Quaternary paleoseismic archives: Examples in the northwestern Alps and clues for earthquake-origin assessment of sedimentary disturbances." In Geological Criteria for Evaluating Seismicity Revisited: Forty Years of Paleoseismic Investigations and the Natural Record of Past Earthquakes. Geological Society of America, 2011. http://dx.doi.org/10.1130/2011.2479(07).

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Rovey, Charles W., Damon J. Bassett, and Matthew P. McKay. "Ordovician and Mississippian stratigraphy in southwestern Missouri, USA." In Field Excursions from the 2021 GSA Section Meetings. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.0061(08).

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ABSTRACT A succession of Ordovician and Mississippian carbonates, separated unconformably, is exposed across the southern flank of the Ozark Dome in southwest Missouri. Deposits of both periods exemplify typical facies of the Midwestern United States: carbonate tidal-flat assemblages for the Early Ordovician and carbonate shelf environments for the Early–Middle Mississippian. The basic stratigraphic sequence of these deposits has been known for over a century, but interesting features remain to be addressed. Thin discontinuous sandstones are present within the Early Ordovician Cotter Dolomite,
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Marple, Ronald T., Robert J. Altamura, Shelton S. Alexander, and James D. Hurd. "Evidence for post-Triassic brittle faults in eastern Connecticut and south-central Massachusetts using LiDAR, geomorphic, and geophysical data combined with field observations: Implications for the origin of the Moodus area seismicity." In Geological Society of America Special Papers. Geological Society of America, 2013. http://dx.doi.org/10.1130/2012.2493(04).

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Conference papers on the topic "Origin of seismicity"

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Fortier, Eric. "Different Origin of Microseismic Activity Highlighted by Magnitude of Completeness and B-value Computation Case Study on Underground Salt Exloitation and Storage." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/216752-ms.

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Abstract Seismic monitoring becomes an important and reliable method to identify instabilities induced by underground operations. Depending on the type of operations, as underground storage in salt caverns, hydraulic stimulation, or reservoir monitoring, different types of seismic activities are identified. After the location of micro-seismic events, different parameters are computed, like the peak ground velocities, the magnitudes, the source radius, or the B-value. When a network does not have enough sensors to calculate reliable focal mechanisms, the use of such parameters can help us to be
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Jin, L., R. Lippoldt, W. J. Curry, S. Hussenoeder, and P. Bhargava. "A Numerical Investigation of the 2020 M4.2 Stanton, Texas Seismicity Sequence Using 3D Poroelastic Modeling." In 56th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2022. http://dx.doi.org/10.56952/arma-2022-2023.

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ABSTRACT: This paper investigates a seismicity sequence that occurred near Stanton, TX between December 2020 and February 2021 with event magnitudes peaking at 4.2. The historically aseismic area has been undergoing shallow salt water disposal (SWD) since the early 1980s, and deep SWD in the last decade. We perform a 3D fully coupled hydro-geomechanical investigation into potential links between the M4.2 event sequence and the surrounding decades-long, multi-zone SWD activities involving 183 SWD wells in a 900 mile2 area. We include faults interpreted from reflection seismic data into the mode
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Altamura, Robert. "THE EASTFORD FAULT - A REGIONAL LATE–STAGE FAULT ZONE IN EASTERN CONNECTICUT: IMPLICATIONS FOR THE ORIGIN OF MOODUS AREA SEISMICITY AND AUDIBLE EARTHQUAKES." In Northeastern Section-56th Annual Meeting-2021. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021ne-361866.

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Woźniakowska, P., L. Eisner, and M. Musil. "The Largest Event Of The Dfw Seismicity 3 Years After The Injection Termination - Is It An Evidence For Natural Origins Of Dfw Seismicity?" In Seventh EAGE Workshop on Passive Seismic 2018. EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201800061.

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Hui, Gang, Shengnan Chen, and Fei Gu. "A Novel Coupled Approach to Investigate the Spatiotemporal Evolution of Fracturing-Induced Seismicity: Case Study." In SPE Hydraulic Fracturing Technology Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204156-ms.

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Abstract The recent seismicity rate increase in Fox Creek is believed to be linked to the hydraulic fracturing operations near the region. However, the spatiotemporal evolution of hydraulic fracturing-induced seismicity is not well understood. Here, a coupled approach of geology, geomechanics, and hydrology is proposed to characterize the spatiotemporal evolution of hydraulic fracturing-induced seismicity. The seismogenic faults in the vicinity of stimulated wells are derived from the focal mechanisms of mainshock event and lineament features of induced events. In addition, the propagation of
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Im, Kyungjae, Jean-Philippe Avouac, Taeho Kim, and Linxuan Li. "Simulating Induced Earthquakes in Complex Fault Systems." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-1235.

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ABSTRACT: Much progress has recently been made in the development of stress-based models for forecasting induced earthquakes. Models based on a point-source representation of earthquake nucleation can already be used to estimate seismicity rates. Forecasting magnitudes with stress-based models remains a challenge that requires taking fault finite size and network geometry into account. Quake-DFN, an open-source earthquake simulator, was developed to address this challenge. It allows simulating sequences of earthquakes in a 3-D Discrete Fault Network governed by rate and state friction, a pheno
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Misini, Labeat, Jelena Ristic, Viktor Hristovski, and Danilo Ristic. "TESTING OF MODELS OF ORIGINAL AND UPGRADED CONNECTION BETWEEN RC FLOOR-BEAM AND COLUMN USED IN MODERN PRECAST HALL SYSTEM." In 2nd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2023. http://dx.doi.org/10.5592/co/2crocee.2023.72.

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The design and construction of modern, globally upgraded and seismically safe industrial hall systems (SSIH Systems) is currently viewed as an activity of extraordinary importance since these structures most frequently house new advanced and robotically conceptualized industrial machines and equipment, whose value multiply exceeds the value of the integral structures. The SSIH systems are of vital importance because it is only by their practical application that efficient and continuous functioning of important production industrial systems and compounds is provided. The achieved safety margin
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Wenning, Q. C., N. Gholizadeh Doonechaly, A. Shakas, et al. "Heat Propagation Through Fractures During Hydraulic Stimulation in Crystalline Rock." In 56th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2022. http://dx.doi.org/10.56952/arma-2022-2112.

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ABSTRACT: The Bedretto Underground Laboratory for Geosciences and Geoenergies (BULGG) is located in central Switzerland and serves as a test bed for geothermal energy research. Several boreholes were drilled from the laboratory section (ca. 1.1 km overburden) to serve as injection boreholes for stimulation and geophysical monitoring boreholes. During a hydraulic stimulation injection in winter 2020 into injection borehole ST2 interval ranging from 313 to 320 m, we observe a thermal perturbation using distributed fiber optic temperature sensing in a neighboring open borehole (MB1) at a depth of
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Li, X., F. Zhang, M. Du, et al. "Numerical Study on Permeability Evolution of a Natural Fracture in Granite During Shearing." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0196.

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ABSTRACT The permeability evolution of natural fractures during shearing is one of the critical issues in enhanced geothermal system (EGS). In this study, a series of numerical simulations of shear-flow tests under different normal stresses were carried out to investigate the permeability evolution and shear behavior of a natural fracture during shearing. All numerical simulations in this study were implemented based on a coupled hydro-mechanical pore network model (PNM) of fluid flow in discrete element method (DEM). Fluid grids in the simulations are continuously refreshed as the shear progr
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Reports on the topic "Origin of seismicity"

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Visser, R., H. Kao, R. M. H. Dokht, A. B. Mahani, and S. Venables. A comprehensive earthquake catalogue for northeastern British Columbia: the northern Montney trend from 2017 to 2020 and the Kiskatinaw Seismic Monitoring and Mitigation Area from 2019 to 2020. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/329078.

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To increase our understanding of induced seismicity, we develop and implement methods to enhance seismic monitoring capabilities in northeastern British Columbia (NE BC). We deploy two different machine learning models to identify earthquake phases using waveform data from regional seismic stations and utilize an earthquake database management system to streamline the construction and maintenance of an up-to-date earthquake catalogue. The completion of this study allows for a comprehensive catalogue in NE BC from 2014 to 2020 by building upon our previous 2014-2016 and 2017-2018 catalogues. Th
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