Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area
This paper aims to elucidate the seismic characteristics of the Three Gorges Reservoir area after impoundment and investigate the seismic source migration. Based on the seismic data analysis from the Badong segment in the Three Gorges Reservoir area, we assessed the local temporal and spatial variat...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2025-01-01
|
| Series: | Earthquake Research Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772467024000423 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832573021673488384 |
|---|---|
| author | Guoyong Duan Fei Li Kongwei Wang Yaobo Xu |
| author_facet | Guoyong Duan Fei Li Kongwei Wang Yaobo Xu |
| author_sort | Guoyong Duan |
| collection | DOAJ |
| description | This paper aims to elucidate the seismic characteristics of the Three Gorges Reservoir area after impoundment and investigate the seismic source migration. Based on the seismic data analysis from the Badong segment in the Three Gorges Reservoir area, we assessed the local temporal and spatial variations in the frequent earthquakes. Correlation analysis was conducted to investigate the relationship between changes in reservoir water levels and the occurrence of reservoir-induced earthquakes. Additionally, we examined the regularity of earthquake occurrences at the exact location during different periods. Based on the fault mechanics principles, a formula was derived to estimate the length of open and wing-shaped rupture at the hypocenter under the influence of pore or excess pore water pressure. The results reveal that reservoir-induced seismicity demonstrates short-term cycles characterized by alternating ''active periods'' and ''quiet periods,'' as well as long-term cycles with the combined periods. The probability of earthquakes occurring within one year at the epicentre is relatively high and decreases after four years. The derived formula can be utilized to estimate the seismic migration distance at the epicentre in the short term. These research findings provide valuable insights for analyzing the regularity of reservoir-induced earthquake activities and understanding the mechanism of seismic source migration. |
| format | Article |
| id | doaj-art-8e76cbbd674b41d6a58850bf7c600fe1 |
| institution | Kabale University |
| issn | 2772-4670 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Earthquake Research Advances |
| spelling | doaj-art-8e76cbbd674b41d6a58850bf7c600fe12025-02-02T05:29:31ZengKeAi Communications Co. Ltd.Earthquake Research Advances2772-46702025-01-0151100316Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir AreaGuoyong Duan0Fei Li1Kongwei Wang2Yaobo Xu3Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, China Three Gorges University, Yichang, 443002, China; College of Electrical and New Energy, China Three Gorges University, Yichang, 443000, ChinaKey Laboratory of Geological Hazards on Three Gorges Reservoir Area, China Three Gorges University, Yichang, 443002, China; Hubei Three Gorges Polytechnic, Yichang, 430002, China; Corresponding author. Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, China Three Gorges University, Yichang, 443002, China.Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, China Three Gorges University, Yichang, 443002, ChinaCollege of Electrical and New Energy, China Three Gorges University, Yichang, 443000, ChinaThis paper aims to elucidate the seismic characteristics of the Three Gorges Reservoir area after impoundment and investigate the seismic source migration. Based on the seismic data analysis from the Badong segment in the Three Gorges Reservoir area, we assessed the local temporal and spatial variations in the frequent earthquakes. Correlation analysis was conducted to investigate the relationship between changes in reservoir water levels and the occurrence of reservoir-induced earthquakes. Additionally, we examined the regularity of earthquake occurrences at the exact location during different periods. Based on the fault mechanics principles, a formula was derived to estimate the length of open and wing-shaped rupture at the hypocenter under the influence of pore or excess pore water pressure. The results reveal that reservoir-induced seismicity demonstrates short-term cycles characterized by alternating ''active periods'' and ''quiet periods,'' as well as long-term cycles with the combined periods. The probability of earthquakes occurring within one year at the epicentre is relatively high and decreases after four years. The derived formula can be utilized to estimate the seismic migration distance at the epicentre in the short term. These research findings provide valuable insights for analyzing the regularity of reservoir-induced earthquake activities and understanding the mechanism of seismic source migration.http://www.sciencedirect.com/science/article/pii/S2772467024000423Reservoir-induced earthquakeSeismic migrationPore water pressureEarthquake source mechanismEarthquake migration distance |
| spellingShingle | Guoyong Duan Fei Li Kongwei Wang Yaobo Xu Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area Earthquake Research Advances Reservoir-induced earthquake Seismic migration Pore water pressure Earthquake source mechanism Earthquake migration distance |
| title | Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area |
| title_full | Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area |
| title_fullStr | Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area |
| title_full_unstemmed | Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area |
| title_short | Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area |
| title_sort | assessment of seismic spatiotemporal characteristics and migration distance in the badong section of the three gorges reservoir area |
| topic | Reservoir-induced earthquake Seismic migration Pore water pressure Earthquake source mechanism Earthquake migration distance |
| url | http://www.sciencedirect.com/science/article/pii/S2772467024000423 |
| work_keys_str_mv | AT guoyongduan assessmentofseismicspatiotemporalcharacteristicsandmigrationdistanceinthebadongsectionofthethreegorgesreservoirarea AT feili assessmentofseismicspatiotemporalcharacteristicsandmigrationdistanceinthebadongsectionofthethreegorgesreservoirarea AT kongweiwang assessmentofseismicspatiotemporalcharacteristicsandmigrationdistanceinthebadongsectionofthethreegorgesreservoirarea AT yaoboxu assessmentofseismicspatiotemporalcharacteristicsandmigrationdistanceinthebadongsectionofthethreegorgesreservoirarea |