Characteristics of focal mechanisms in Chile subduction
We use the Centroid Moment Tensor (CMT) solution of the earthquakes occurred in Chile subduction to analyze the characteristics of focal mechanisms. We define the angle between P, B, and T axes of focal mechanisms and three stress axes of tectonic stress field as the consistency parameter, to resear...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2012-08-01
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| Series: | Geodesy and Geodynamics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674984715301233 |
| _version_ | 1818445116802596864 |
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| author | Wang Xiaoshan Diao Guiling Feng Xiangdong Yang Yaqiong |
| author_facet | Wang Xiaoshan Diao Guiling Feng Xiangdong Yang Yaqiong |
| author_sort | Wang Xiaoshan |
| collection | DOAJ |
| description | We use the Centroid Moment Tensor (CMT) solution of the earthquakes occurred in Chile subduction to analyze the characteristics of focal mechanisms. We define the angle between P, B, and T axes of focal mechanisms and three stress axes of tectonic stress field as the consistency parameter, to research the dynamic changes of focal mechanism pattern in earthquake preparation area before the 2010 Maule, Chile earthquake. The result shows that the consistency parameter decreases before the earthquake, and the area of the lower consistent parameter visually coincides with the distribution of aftershocks. This phenomenon is similar to the Load-Unload Response Ratio (LURR) decreases prior to the occurrence of macro-fracture happened in the acoustic emission experiments involving large rock specimens under tri-axial stress. |
| first_indexed | 2024-12-14T19:26:43Z |
| format | Article |
| id | doaj.art-8330df05c9cb4781850e4334db7d2cee |
| institution | Directory Open Access Journal |
| issn | 1674-9847 |
| language | English |
| last_indexed | 2024-12-14T19:26:43Z |
| publishDate | 2012-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Geodesy and Geodynamics |
| spelling | doaj.art-8330df05c9cb4781850e4334db7d2cee2022-12-21T22:50:11ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472012-08-0133232810.3724/SP.J.1246.2012.00023Characteristics of focal mechanisms in Chile subductionWang XiaoshanDiao GuilingFeng XiangdongYang YaqiongWe use the Centroid Moment Tensor (CMT) solution of the earthquakes occurred in Chile subduction to analyze the characteristics of focal mechanisms. We define the angle between P, B, and T axes of focal mechanisms and three stress axes of tectonic stress field as the consistency parameter, to research the dynamic changes of focal mechanism pattern in earthquake preparation area before the 2010 Maule, Chile earthquake. The result shows that the consistency parameter decreases before the earthquake, and the area of the lower consistent parameter visually coincides with the distribution of aftershocks. This phenomenon is similar to the Load-Unload Response Ratio (LURR) decreases prior to the occurrence of macro-fracture happened in the acoustic emission experiments involving large rock specimens under tri-axial stress.http://www.sciencedirect.com/science/article/pii/S16749847153012332010 Maule earthquakeCentroid Moment Tensor (CMT) solutionsconsistency parameterChile subductionLoad-Unload Response Ratio (LURR) |
| spellingShingle | Wang Xiaoshan Diao Guiling Feng Xiangdong Yang Yaqiong Characteristics of focal mechanisms in Chile subduction Geodesy and Geodynamics 2010 Maule earthquake Centroid Moment Tensor (CMT) solutions consistency parameter Chile subduction Load-Unload Response Ratio (LURR) |
| title | Characteristics of focal mechanisms in Chile subduction |
| title_full | Characteristics of focal mechanisms in Chile subduction |
| title_fullStr | Characteristics of focal mechanisms in Chile subduction |
| title_full_unstemmed | Characteristics of focal mechanisms in Chile subduction |
| title_short | Characteristics of focal mechanisms in Chile subduction |
| title_sort | characteristics of focal mechanisms in chile subduction |
| topic | 2010 Maule earthquake Centroid Moment Tensor (CMT) solutions consistency parameter Chile subduction Load-Unload Response Ratio (LURR) |
| url | http://www.sciencedirect.com/science/article/pii/S1674984715301233 |
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