Preliminary Results of Anthropogenic Seismicity Monitoring in the Region of Song Tranh 2 Reservoir, Central Vietnam

Wiszniowski, Jan; Giảng, Nguyễn Văn; Plesiewicz, Beata; Lizurek, Grzegorz; Van, Dinh Quoc; Khoi, Le Quang; Lasocki, Stanisław

doi:10.1515/acgeo-2015-0021

Cited by 13 publications

(10 citation statements)

References 21 publications

(19 reference statements)

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“…It is also shown in the above cited paper (Eaton and Maghsoudi, 2015) that the earthquakes were generated in two different tectonic systems, which is supported by the seismotectonic interpretation of Song Tranh 2 seismicity provided by Wiszniowski, et al (2015). In addition, the earthquake productivity within the second cluster became more significant in the later part of the period of observation.…”

Section: Methodsmentioning

confidence: 62%

See 1 more Smart Citation

Violations of Gutenberg–Richter Relation in Anthropogenic Seismicity

Urban

Lasocki

Blascheck

et al. 2015

Pure Appl. Geophys.

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Anthropogenic seismicity (AS) is the undesired dynamic rockmass response to technological processes. AS environments are shallow hence their heterogeneities have important impact on AS. Moreover, AS is controlled by complex and changeable technological factors. This complicated origin of AS explains why models used in tectonic seismicity may be not suitable for AS. We study here four cases of AS, testing statistically whether the magnitudes follow the Gutenberg-Richter relation or not. The considered cases include the data from Mponeng gold mine in South Africa, the data observed during stimulation of geothermal well Basel 1 in Switzerland, the data from Acu water reservoir region in Brazil and the data from Song Tranh 2 hydropower plant region in Vietnam. The cases differ in inducing technologies, in the duration of periods in which they were recorded, and in the ranges of magnitudes. In all four cases the observed frequency-magnitude distributions statistically significantly differ from the Gutenberg-Richter relation. Although in all cases the Gutenberg-Richter b-value changed in time, this factor turns out to be not responsible for the discovered deviations from the Gutenberg-Richter born exponential distribution model. Though the deviations from Gutenberg-Richter law are not big, they substantially diminish the accuracy of assessment of seismic hazard parameters. It is demonstrated that the use of non-parametric kernel estimators of magnitude distribution functions improves significantly the accuracy of hazard estimates and therefore these estimators are recommended to be used in probabilistic analyses of seismic hazard caused by AS.

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Section: Methodsmentioning

confidence: 62%

“…Two the strongest earthquakes of magnitudes 4.6 and 4.7 took place on 22nd October and on 15th November 2012, respectively and caused minor damage to housing in the area. Since 2012 the area has been monitored by a local network of short period seismometers [Wiszniowski et al, 2015]. The completeness threshold is 1.0.…”

Section: Methodsmentioning

confidence: 99%

Violations of Gutenberg–Richter Relation in Anthropogenic Seismicity

Urban

Lasocki

Blascheck

et al. 2015

Pure Appl. Geophys.

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“…(Lasocki et al 2017;Leptokaropoulos et al 2017a). IS-EPOS has been already used to facilitate scientific research in recently published papers connected with anthropogenic as well as natural seismicity by utilizing data, applications and/or the interface and facilities of the platform (Wiszniowski et al 2015;Kozłowska et al 2016;Lizurek 2017;Rudziński and Dineva 2017;Gkarlaouni et al 2017;Lizurek et al 2017;Olszewska et al 2017;Staszek et al 2017;Leptokaropoulos et al 2017bLeptokaropoulos et al , 2018aLeptokaropoulos and Staszek 2018;Orlecka-Sikora et al 2018). Fig.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

IS-EPOS: a platform for anthropogenic seismicity research

et al. 2018

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Research in the field of anthropogenic seismicity (AS) requires not only seismicity data but also data regarding the progress of the technological/production activities which is the origin of the induced or triggered seismic events. Such data are typically restricted and proprietary, and therefore, usually not available for independent researchers who wish to develop, perform and verify scientific research. The induced seismicity-European plate observing system (IS-EPOS) web portal offers to its user's access to data, applications and documents in order to facilitate AS research. IS-EPOS web portal has been designed to serve as one of the main pillars of the Thematic Core Service-Anthropogenic Hazards belonging to pan-European multidisciplinary research infrastructure created within the EPOS program. IS-EPOS platform is open for research community and general public according to its rules of access. The platform is operating since January 2016 and is now integrated in the EPOS Integrated Core Services. IS-EPOS e-platform promotes new opportunities to study and comprehend the dynamic and complex solid earth system by integrating the use of multidisciplinary data, data products, analysis models and online applications. The integration of existing and new national and transnational Research Infrastructures increases the access and use of multidisciplinary data recorded by the solid earth observing systems, acquired in laboratory experiments and/ or produced by computational simulations. In this paper, we describe the structure and the main innovative characteristics implemented in IS-EPOS. The platform is open to accommodate data integrated within other research projects, and it is continuously being updated with improvements in existing features and implementations of new ones. An appendix at the end of the article provides a summary of acronyms and abbreviations in order to make the reader familiar with the terms used throughout the manuscript.

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“…The second model corresponds for instance to the seismicity triggered by a surface reservoir impoundment of the hydropower plant Song Tranh 2 in Central Vietnam (e.g. Wiszniowski et al 2015;Urban et al 2015). The third model is a mixture of two one-side truncated exponential distributions, and reads:…”

Section: Performance Of the Algorithmmentioning

confidence: 99%

“…The two considered approaches to CI estimation of hazard functions have been applied to two actual sets of earthquakes related to anthropogenic seismicity accompanying, respectively, (1) underground exploitation of copper ore in the Legnica-Głogów Copper District (LGCD) in Poland (Orlecka-Sikora et al 2012) and (2) Song Tranh 2 in Vietnam reservoir impoundment (Wiszniowski et al 2015;Urban et al 2015). The first dataset from LGCD is associated with mining exploitation in section G-11/8 of Rudna mine.…”

Section: Practical Examplesmentioning

confidence: 99%

Interval Estimation of Seismic Hazard Parameters

Orlecka‐Sikora

Lasocki

2016

Pure Appl. Geophys.

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Abstract-The paper considers Poisson temporal occurrence of earthquakes and presents a way to integrate uncertainties of the estimates of mean activity rate and magnitude cumulative distribution function in the interval estimation of the most widely used seismic hazard functions, such as the exceedance probability and the mean return period. The proposed algorithm can be used either when the Gutenberg-Richter model of magnitude distribution is accepted or when the nonparametric estimation is in use. When the Gutenberg-Richter model of magnitude distribution is used the interval estimation of its parameters is based on the asymptotic normality of the maximum likelihood estimator. When the nonparametric kernel estimation of magnitude distribution is used, we propose the iterated bias corrected and accelerated method for interval estimation based on the smoothed bootstrap and secondorder bootstrap samples. The changes resulted from the integrated approach in the interval estimation of the seismic hazard functions with respect to the approach, which neglects the uncertainty of the mean activity rate estimates have been studied using Monte Carlo simulations and two real dataset examples. The results indicate that the uncertainty of mean activity rate affects significantly the interval estimates of hazard functions only when the product of activity rate and the time period, for which the hazard is estimated, is no more than 5.0. When this product becomes greater than 5.0, the impact of the uncertainty of cumulative distribution function of magnitude dominates the impact of the uncertainty of mean activity rate in the aggregated uncertainty of the hazard functions. Following, the interval estimates with and without inclusion of the uncertainty of mean activity rate converge. The presented algorithm is generic and can be applied also to capture the propagation of uncertainty of estimates, which are parameters of a multiparameter function, onto this function.Key words: Aggregated uncertainty in the activity rate and magnitude, magnitude cumulative distribution function, interval estimation of seismic hazard functions, resampling methods, bootstrap, jackknife.

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Preliminary Results of Anthropogenic Seismicity Monitoring in the Region of Song Tranh 2 Reservoir, Central Vietnam

Cited by 13 publications

References 21 publications

Violations of Gutenberg–Richter Relation in Anthropogenic Seismicity

Violations of Gutenberg–Richter Relation in Anthropogenic Seismicity

IS-EPOS: a platform for anthropogenic seismicity research

Interval Estimation of Seismic Hazard Parameters

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