Water Reservoir and Deep Well Induced Seismicity

Guha, S. K.

doi:10.1007/978-94-015-9452-3_2

Cited by 2 publications

(3 citation statements)

References 81 publications

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“…Tras analizar más de 100 casos, Guha and Patil (1990) clasifican la sismicidad inducida en tres categorías en función de las magnitudes registradas: sismicidad intensa (magnitud superior a 6.0), moderada-débil (magnitud entre 3.1-5.9) y micro-temblores (magnitud inferior a 3.0). Siguiendo esta clasificación, el caso de la sismicidad asociada a Pirrís se encontraría dentro de la tercera categoría (micro-temblores) durante el llenado y de la segunda categoría (sismicidad moderada-débil) tras el llenado.…”

Section: Análisis Descriptivounclassified

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Análisis De Sismicidad Asociada Al Llenado De Embalses. Caso Del Centro De Producción De Pirrís (Costa Rica)

Barajas

Alvarado

Oterino

et al. 2017

Proceedings - 1st Congress in Geomatics Engineering - CIGeo

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Abstract:The presented work is the result of a new collaboration between the Costa Rican Institute of Electricity (ICE) and the Technical University of Madrid (UPM) for the investigation of induced seismicity issues. Triggered seismicity associated with the filling of artificial water reservoirs is known since six decades ago. However, it is the case of triggered seismicity more complicated to model their effects. More than 100 cases of reservoir induced/triggered seismicity have been collected around the world and this issue continues today being a research topic of great importance. Indeed, new developments and contributions are constantly being made with the aim of achieve a better understanding of their characteristics and genesis.The main aim of the presented work is to analyze the spatial-temporal evolution of the seismic events recorded around the Pirrís reservoir before, during and after its filled. With the analysis of the seismic events we try to know and control the influence of the reservoir operations on the seismic activity of the area. Different parameters are studied, using methodologies proposed by different authors, in order to explain the possible effects of reservoir filling in changing the stress conditions in the environment and to detect any possible anomaly. Moreover, some analysis have been done in order to find a possible correlation between the water level in the reservoir and the evolution of the seismic activity recorded.Overall, the results of this study will provide important conclusions about the sensitivity of certain parameters to evaluate and model the effects of filling reservoirs on the seismic activity in the vicinity and we will present the spatial-temporal evolution of the seismicity associated with the specific case of the Pirrís hydraulic project.Key words: Seismicity, Reservoir, Geophysics, Seismic hazard Resumen:El trabajo presentado es el resultado de una colaboración iniciada entre el Instituto Costarricense de Electricidad (ICE) y la Universidad Politécnica de Madrid (UPM) para la investigación de la sismicidad inducida por causas antrópicas. La sismicidad disparada por el llenado de grandes embalses es un hecho conocido desde hace décadas, siendo uno de los tipos de sismicidad más complejos a la hora de modelizar sus efectos. Hasta ahora, más de 100 casos de sismicidad disparada por embalses han sido recogidos en todo el mundo, por lo que el tema de la sismicidad inducida se ha convertido en una línea de investigación cada vez más importante y estudiada.El objetivo principal de este trabajo se centra en analizar la evolución espacio-temporal de la sismicidad registrada en los alrededores del embalse de Pirrís (Costa Rica) en tres fases: antes, durante y después de su llenado. Con dicho análisis se pretende conocer y controlar la influencia que las operaciones efectuadas en el embalse tienen en la actividad sísmica de la zona. Se han estudiado diferentes parámetros sísmicos y se ha analizado su variación en el tiempo (diferenciando entre las tres fases temporales ci...

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Section: Análisis Descriptivounclassified

“…Siguiendo la clasificación de sismicidad disparada en función de la magnitud, propuesta por Guha and Patil (1990), en el CP de Pirrís estaríamos ante un caso de microsismicidad disparada durante el llenado y de una sismicidad moderada-débil tras el llenado.…”

Section: Conclusionesunclassified

Análisis De Sismicidad Asociada Al Llenado De Embalses. Caso Del Centro De Producción De Pirrís (Costa Rica)

Barajas

Alvarado

Oterino

et al. 2017

Proceedings - 1st Congress in Geomatics Engineering - CIGeo

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“…A strong belief that the Indian Peninsular Shield is stable and aseismic was greatly shaken after this earthquake. Since then, detailed geological, tectonic, seismic, geophysical, and hydrogeological investigations of the river basin have been carried out by several workers (Gupte 1968;Gupta et al 1969Gupta et al , 1971Gupta et al , 1972Gupta et al , 1980Gupta et al , 1997Kailasam and Murthy 1969;Lee and Rayleigh 1969;Krishna et al 1969;Agrawal 1970Agrawal , 1971Agrawal , 1972Ram and Singh 1971;Balsundaram and Srinivasan 1971;Guha et al 1971Guha et al , 1972Guha et al , 1974Bramham and Negi 1973;Chopra and Chakrabarti (1973); Geological Survey of India 1974; Athavale 1975;Auden 1975;Rao et al 1975;Singh et al 1975;Chandra 1976;Langston 1976Langston , 1981Rastogi and Talwani 1980;Kaila et al 1981; Guha and Padale 1981;Powar 1981;Gupta 1983;Rao and Rao 1984;Langston and Franco-Spera 1985;Dube 1986;Guha and Patil 1990;Naik 1990aNaik , b, 1999Gupta and Rambabu 1993;Agarwal and Naik 1992;Patil et al 1992;Naik 1993a, b;…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemistry of the Koyna River basin, India

et al. 2009

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Hydrogeochemistry of the Koyna River basin, famous for the Koyna earthquake (magnitude 7) of 1967, has been studied. Basalt is the primary aquifer; laterites, alluvium, and talus deposits form aquifers of secondary importance. Groundwater generally occurs under water table conditions in shallow aquifers. Deeper aquifers are associated only with basalts. One hundred and 87 water samples were collected from various sources, such as dugwells, borewells, springs, and surface water, including 40 samples for analysis of iron. Only major constituents were analyzed. Analyses show that the concentrations of Ca 2? exceed that of Mg 2? in almost all water samples; the concentrations of Na ? are generally next to Ca 2? and are always higher than that of K ? ; and CO 3 2and SO 4 2are very low and are often negligible. Groundwater in borewells tapping deeper aquifers has higher mineralization compared to that in dugwells representing shallow aquifers. Majority of the water samples are dominated by alkaline earths (Ca 2? , Mg 2? ) and weak acids (HCO 3 -, CO 3 2-). Groundwater from shallow aquifers is generally calciumbicarbonate type (53%) and calcium-magnesium-bicarbonate type (27%). In case of deeper aquifer, it is mostly calcium-magnesium-bicarbonate type (29%), sodiumbicarbonate type (24%), calcium-bicarbonate type (19%), calcium-magnesium-sodium-bicarbonate type (19%) and sodium-calcium-bicarbonate type (9%). Groundwater water is generally fit for drinking and irrigation purposes, except in the lower reaches of the Koyna River basin, which is affected by near water logging conditions.

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Water Reservoir and Deep Well Induced Seismicity

Cited by 2 publications

References 81 publications

Análisis De Sismicidad Asociada Al Llenado De Embalses. Caso Del Centro De Producción De Pirrís (Costa Rica)

Análisis De Sismicidad Asociada Al Llenado De Embalses. Caso Del Centro De Producción De Pirrís (Costa Rica)

Hydrogeochemistry of the Koyna River basin, India

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