Wiszniowski, Jan and Van Giang, Nguyen and Lizurek, Grzegorz and Plesiewicz, Beata and Quoc Van, Dinh and Quang Khoi, Le (2017) Vietnamese-Polish investigation of Reservoir Triggered Seismicity – measurements and first conclusions. In: The International Conference on Research Development and Cooperation in Geophysics, Hanoi, Vietnam.
|
Text
Full_paper.pdf - Accepted Version Download (1MB) | Preview |
Abstract
The Institute of Geophysics Vietnam Academy of Science and Technology (IGP VAST) and the Institute of Geophysics Polish Academy of Sciences (IG PAS) has been cooperating for decades in the field of seismology. It started in the International Geophysical Year 1957-1958. For a long time, the cooperation was based on a seismic analysis of shocks. An example of such cooperation was the earthquake in 1989 in Hoa Binh, North Vietnam. New horizons of cooperation appeared in 2013, when an Agreement for Research Co-operation between the IGP VAST and the IG PAS was concluded to provide a framework for co-pperative research in the field of Reservoir Triggered Seismicity (RTS) research in Song Tranh 2 (STR2) area. The cooperation was expanded in 2015, when next agreement covering second reservoir in Lai Chau was concluded. The measurement and results of common investigations in STR2 and Lai Chau are the scope of this work. In both areas dense local networks were installed which allowed estimate focal parameters. The Lai Chau case is under initial study now. Contrary to most cases of RTS, the local network in Lai Chau had been built before the filling of the reservoir started. It allows to study full cycle of changes of seismogenic processes. The seismicity in STR2 began in 2010, just after the dam was filled. Result of investigations were already published. We discovered there two regimes of seismic response to the filling of the reservoir, which occur in clusters. They differ in periods of seismic activity and frequency- magnitude distributions.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Reservoir Triggered Seismicity, Focal Mechanism, Clustering, completeness of catalogs, b-value |
| Subjects: | Methodology > Method and procesing > Source parameter estimation Methodology > Method and procesing > Technology-seismicity interaction Region > Vietnam Inducing technology > Reservoir impoundment |
| Project: | IS-EPOS project > SONG TRANH: Deep water reservoir EPOS-IP > SONG TRANH: Deep water reservoir POL-VIET > LAI CHAU: water reservoir |