Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data

Nguyen Van Giang; Jan Wiszniowski; Beata Plesiewicz; Grzegorz Lizurek; Dinh Quoc Van; Le Quang Khoi

doi:doi:10.11648/j.earth.20150403.13

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Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data

Nguyen Van Giang, Jan Wiszniowski, Beata Plesiewicz, Grzegorz Lizurek, Dinh Quoc Van, Le Quang Khoi

Published in Earth Sciences (Volume 4, Issue 3)

Received: 5 May 2015 Accepted: 20 May 2015 Published: 1 June 2015

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Abstract

The Song Tranh 2 hydropower construction is located in the Quang Nam province (central Vietnam), it has a reservoir volume of 740 million cubic meters of water and a dam height of 96 m. The reservoir was filled to capacity for the first time in February 2011 to about 160m, then it dropped to 140 m in July 2011. The filling of reservoir started again in August 2011 and the maximum water level of 175 m was reached in October 2011. Song Tranh 2 and its surrounding regions suffered from earthquakes in March 2011, it also suffered from a higher magnitude earthquake in October and November, 2012 of M=4.6 and 4.7 respectively. By the end of 2012, a seismic network including 6 stations was set up around the Song Tranh 2 reservoir area and a full network of 10 stations was set up by August 2013. The final seismic network is capable of detecting and locating weaker seismic earthquakes. It is also possible to calculate the extended source parameters like focal mechanism, slip direction etc. In the period from August 2013 to May 2014 about 2000 seismic events were detected, and 359 of them were localized and magnitudes were calculated. Seismic analysis and update catalogues are currently being conducted. The LocSAT application was used to locate events, to perform hypocentral inversion of the phase arrival data, to estimate the origin time, epicentral location, and depth by registered data from the VERIS network. Mechanism solutions with P-wave amplitude inversion of three events were determined. It suggests that reservoir construction is a major factor in the seismogenic process.

Published in	Earth Sciences (Volume 4, Issue 3)
DOI	10.11648/j.earth.20150403.13
Page(s)	101-111
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Reservoir Induced Seismicity, Seismic Network, Source Parameters, Focal Mechanism, Completed Catalogue

References

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APA Style

Nguyen Van Giang, Jan Wiszniowski, Beata Plesiewicz, Grzegorz Lizurek, Dinh Quoc Van, et al. (2015). Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data. Earth Sciences, 4(3), 101-111. https://doi.org/10.11648/j.earth.20150403.13

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ACS Style

Nguyen Van Giang; Jan Wiszniowski; Beata Plesiewicz; Grzegorz Lizurek; Dinh Quoc Van, et al. Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data. Earth Sci. 2015, 4(3), 101-111. doi: 10.11648/j.earth.20150403.13

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AMA Style

Nguyen Van Giang, Jan Wiszniowski, Beata Plesiewicz, Grzegorz Lizurek, Dinh Quoc Van, et al. Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data. Earth Sci. 2015;4(3):101-111. doi: 10.11648/j.earth.20150403.13

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@article{10.11648/j.earth.20150403.13,
  author = {Nguyen Van Giang and Jan Wiszniowski and Beata Plesiewicz and Grzegorz Lizurek and Dinh Quoc Van and Le Quang Khoi},
  title = {Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data},
  journal = {Earth Sciences},
  volume = {4},
  number = {3},
  pages = {101-111},
  doi = {10.11648/j.earth.20150403.13},
  url = {https://doi.org/10.11648/j.earth.20150403.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150403.13},
  abstract = {The Song Tranh 2 hydropower construction is located in the Quang Nam province (central Vietnam), it has a reservoir volume of 740 million cubic meters of water and a dam height of 96 m. The reservoir was filled to capacity for the first time in February 2011 to about 160m, then it dropped to 140 m in July 2011. The filling of reservoir started again in August 2011 and the maximum water level of 175 m was reached in October 2011. Song Tranh 2 and its surrounding regions suffered from earthquakes in March 2011, it also suffered from a higher magnitude earthquake in October and November, 2012 of M=4.6 and 4.7 respectively. By the end of 2012, a seismic network including 6 stations was set up around the Song Tranh 2 reservoir area and a full network of 10 stations was set up by August 2013. The final seismic network is capable of detecting and locating weaker seismic earthquakes. It is also possible to calculate the extended source parameters like focal mechanism, slip direction etc. In the period from August 2013 to May 2014 about 2000 seismic events were detected, and 359 of them were localized and magnitudes were calculated. Seismic analysis and update catalogues are currently being conducted. The LocSAT application was used to locate events, to perform hypocentral inversion of the phase arrival data, to estimate the origin time, epicentral location, and depth by registered data from the VERIS network. Mechanism solutions with P-wave amplitude inversion of three events were determined. It suggests that reservoir construction is a major factor in the seismogenic process.},
 year = {2015}
}

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TY - JOUR
T1 - Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data
AU - Nguyen Van Giang
AU - Jan Wiszniowski
AU - Beata Plesiewicz
AU - Grzegorz Lizurek
AU - Dinh Quoc Van
AU - Le Quang Khoi
Y1 - 2015/06/01
PY - 2015
N1 - https://doi.org/10.11648/j.earth.20150403.13
DO - 10.11648/j.earth.20150403.13
T2 - Earth Sciences
JF - Earth Sciences
JO - Earth Sciences
SP - 101
EP - 111
PB - Science Publishing Group
SN - 2328-5982
UR - https://doi.org/10.11648/j.earth.20150403.13
AB - The Song Tranh 2 hydropower construction is located in the Quang Nam province (central Vietnam), it has a reservoir volume of 740 million cubic meters of water and a dam height of 96 m. The reservoir was filled to capacity for the first time in February 2011 to about 160m, then it dropped to 140 m in July 2011. The filling of reservoir started again in August 2011 and the maximum water level of 175 m was reached in October 2011. Song Tranh 2 and its surrounding regions suffered from earthquakes in March 2011, it also suffered from a higher magnitude earthquake in October and November, 2012 of M=4.6 and 4.7 respectively. By the end of 2012, a seismic network including 6 stations was set up around the Song Tranh 2 reservoir area and a full network of 10 stations was set up by August 2013. The final seismic network is capable of detecting and locating weaker seismic earthquakes. It is also possible to calculate the extended source parameters like focal mechanism, slip direction etc. In the period from August 2013 to May 2014 about 2000 seismic events were detected, and 359 of them were localized and magnitudes were calculated. Seismic analysis and update catalogues are currently being conducted. The LocSAT application was used to locate events, to perform hypocentral inversion of the phase arrival data, to estimate the origin time, epicentral location, and depth by registered data from the VERIS network. Mechanism solutions with P-wave amplitude inversion of three events were determined. It suggests that reservoir construction is a major factor in the seismogenic process.
VL - 4
IS - 3
ER -

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Author Information

Nguyen Van Giang

Institute of Geophysics, Hanoi, Vietnam
Jan Wiszniowski

Institute of Geophysics, PAS, Warsaw, Poland
Beata Plesiewicz

Institute of Geophysics, PAS, Warsaw, Poland
Grzegorz Lizurek

Institute of Geophysics, PAS, Warsaw, Poland
Dinh Quoc Van

Institute of Geophysics, Hanoi, Vietnam
Le Quang Khoi

Institute of Geophysics, Hanoi, Vietnam

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APA Style

Nguyen Van Giang, Jan Wiszniowski, Beata Plesiewicz, Grzegorz Lizurek, Dinh Quoc Van, et al. (2015). Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data. Earth Sciences, 4(3), 101-111. https://doi.org/10.11648/j.earth.20150403.13

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ACS Style

Nguyen Van Giang; Jan Wiszniowski; Beata Plesiewicz; Grzegorz Lizurek; Dinh Quoc Van, et al. Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data. Earth Sci. 2015, 4(3), 101-111. doi: 10.11648/j.earth.20150403.13

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AMA Style

Nguyen Van Giang, Jan Wiszniowski, Beata Plesiewicz, Grzegorz Lizurek, Dinh Quoc Van, et al. Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data. Earth Sci. 2015;4(3):101-111. doi: 10.11648/j.earth.20150403.13

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@article{10.11648/j.earth.20150403.13,
  author = {Nguyen Van Giang and Jan Wiszniowski and Beata Plesiewicz and Grzegorz Lizurek and Dinh Quoc Van and Le Quang Khoi},
  title = {Some Characteristics of Seismic Activity in the Song Tranh 2 Reservoir, Quang Nam, Vietnam by Local Seismic Network Data},
  journal = {Earth Sciences},
  volume = {4},
  number = {3},
  pages = {101-111},
  doi = {10.11648/j.earth.20150403.13},
  url = {https://doi.org/10.11648/j.earth.20150403.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150403.13},
  abstract = {The Song Tranh 2 hydropower construction is located in the Quang Nam province (central Vietnam), it has a reservoir volume of 740 million cubic meters of water and a dam height of 96 m. The reservoir was filled to capacity for the first time in February 2011 to about 160m, then it dropped to 140 m in July 2011. The filling of reservoir started again in August 2011 and the maximum water level of 175 m was reached in October 2011. Song Tranh 2 and its surrounding regions suffered from earthquakes in March 2011, it also suffered from a higher magnitude earthquake in October and November, 2012 of M=4.6 and 4.7 respectively. By the end of 2012, a seismic network including 6 stations was set up around the Song Tranh 2 reservoir area and a full network of 10 stations was set up by August 2013. The final seismic network is capable of detecting and locating weaker seismic earthquakes. It is also possible to calculate the extended source parameters like focal mechanism, slip direction etc. In the period from August 2013 to May 2014 about 2000 seismic events were detected, and 359 of them were localized and magnitudes were calculated. Seismic analysis and update catalogues are currently being conducted. The LocSAT application was used to locate events, to perform hypocentral inversion of the phase arrival data, to estimate the origin time, epicentral location, and depth by registered data from the VERIS network. Mechanism solutions with P-wave amplitude inversion of three events were determined. It suggests that reservoir construction is a major factor in the seismogenic process.},
 year = {2015}
}

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