摘要(英) |
Earthquakes can cause a crustal rupture, and multiple seismic events arranged approximately uniformly may form a stress concentration phenomenon. By looking for the intersection of the two stress concentration areas, we may predict whether there will be an earthquake in the future.
The strongest intersection of circular arcs of earthquakes is found by a gradual downward reaching process of earthquakes, which is started with a magnitude of 6 or higher in the earthquake catalog and ended until two intersecting arcs of earthquakes have been found.
This study retrieved seismic data from the Seismic Database of the Central weather bureau of Taiwan. A Matlab program is used to select earthquake events with any depth from 1982 to 2012, and to draw an earthquake distribution map. Afterr this, the program filters out the seismic arc and find out the intersection of the two strongest arcs of earthquakes.
We focus on the strongest double intersection of the circular arcs of earthquakes, and the results will be verified one day after the intersection have been found to ensure the stability of the searching process.
The aim of this study is to explore how the double intersections of any depth perform in the prediction of strong earthquakes in short periods.
According to the statistical results within 5 years, 4 years, 3 years, and 2 years, we can find that, the strongest double intersections of the circular arcs of earthquakes have a strong correlation with the subsequent strong earthquakes. |
參考文獻 |
[1] H. C. Lei and C. W. Tang, “Circular Arcs and Curvilinear Distributions of Events of Earthquakes in Taiwan,” in The Thirteenth National Conference on Structural Engineering/The Third National Conference on Earthquake Engineering, Taoyuan, Taiwan, ROC, 2016.
[2] H. C. Lei, “Circles, Circular Arcs and Lines of Earthquakes Around Taiwan,” in The 40th National Conference on Theoretical and Applied Mechanics, Hsinchu, Taiwan, ROC, 2016.
[3] H. C. Lei, “Circles, Circular Arcs and Lines of Earthquakes Around Taiwan (II): Magnitude and Time,” in 2017 the 15th Conference on Land Studies, Tainan, Taiwan, ROC, 2017.
[4] H. C. Lei et al., “An Elementary Evaluation of the Efficiency of a Method of Earthquake Prediction by Intersections of Circular Arcs of Earthquakes around
Taiwan,” in The 2017 Taiwan-Japan Joint Symposium on the Advancement of Urban Earthquake Hazard Mitigation Technology, Taoyuan, Taiwan, ROC, 2017.
[5] H. C. Lei, “Some Ideas for Constructing Significant Intersections of Circular Arcs of Earthquakes,” in Taiwan-Japan Joint Symposium on the Advancement of Urban Earthquake Hazard Mitigation Technology, Taoyuan, Taiwan, ROC, 2017.
[6] H. C. Lei, “Strongest Double Intersections of Circular Arcs of Earthquakes around Taiwan,” in The 23rd Forum on Land Use and Planning, Tainan, Taiwan, ROC,2019.
[7] H. C. Lei, “Prediction of Strong Earthquakes around Taiwan by Intersection Point of SDCICAE Close to Evmax,” in The 2019 Taiwan-Japan Joint Symposium on the Advancement of Urban Earthquake Hazard Mitigation Technology, Taoyuan, Taiwan, ROC, 2019.
[8] H. C. Lei, ASICAE by HinChi Lei to find the strongest intersections of circular arcs of earthquakes., https://youtu.be/tvgYLpoH9T4. 2019.
[9] 唐基望,「台灣地震圓弧之研究」,國立中央大學,碩士論文,民國104年6月。
[10] 游敬枰,「從2003 到2013 年台區域地震圓弧交叉與大地震之關聯」,國立中央大學,碩士論文,民國105 年6 月
[11] 劉興宸,「日本地區最強地震圓弧交叉與後續強震之關聯 (2005~2014 年)」,國立中央大學,碩士論文,民國107 年6 月
[12] 林冠宏,「台灣極淺層最強地震圓弧交叉與後續強震之關聯(2004年至2015年)」,國立中央大學,碩士論文,民國107 年6 月 |