| Some Thoughts on the Earthquake Science Experimental Site——The Underground Cloud Map |
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| 作者姓名： | CHEN Yong XU Yihe CAI Huiteng LI Wen |
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| 作者单位： | School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Institute of Earthquake Forecasting, CEA, Beijing 100036, China,School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Key Laboratory of Seismic Observation and Geophysical Imaging, Institute of Geophysics, CEA, Beijing 100081, China,School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Fujian Earthquake Agency, Fuzhou 350003, China,School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Geophysical Exploration Center, CEA, Zhengzhou 450003, China |
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| 基金项目： | This project is sponsored by the National Natural Science Foundation of China (Grant Nos.41790463 and 41674058). |
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| 摘 要： | The Western Yunnan Earthquake Predication Test Site set up jointly by the China Earthquake Administration, the National Science Foundation Commission of America, and United States Geological Survey has played an important role in development of early earthquake research work in China. Due to various objective reasons, most of the predicted targets in the earthquake prediction test site have not been achieved, and the development has been hindered. In recent years, the experiment site has been reconsidered, and renamed the “Earthquake Science Experimental Site”. Combined with the current development of seismology and the practical needs of disaster prevention and mitigation, we propose adding the “Underground Cloud Map” as the new direction of the experimental site. Using highly repeatable, environmentally friendly and safe airgun sources, we could send constant seismic signals, which realizes continuous monitoring of subsurface velocity changes. Utilizing the high-resolution 3-D crustal structure from ambient noise tomography, we could obtain 4-D (3-D space + 1-D time) images of subsurface structures, which we termed the “Underground Cloud Map”. The “Underground Cloud Map” can reflect underground velocity and stress changes, providing new means for the earthquake monitoring forecast nationwide, which promotes the conversion of experience-based earthquake prediction to physics-based prediction.
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| 关 键 词： | Earthquake Science Experimental Site The Underground Cloud Map 4-D seismology Airgun |
| 收稿时间： | 2018/9/18 0:00:00 |
| 修稿时间： | 2018/11/21 0:00:00 |
Some Thoughts on the Earthquake Science Experimental Site-The Underground Cloud Map |
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| CHEN Yong,XU Yihe,CAI Huiteng,LI Wen.Some Thoughts on the Earthquake Science Experimental Site-The Underground Cloud Map[J].Earthquake Research in China,2019,33(1):1-8. |
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| Authors: | CHEN Yong XU Yihe CAI Huiteng and LI Wen |
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| Institution: | School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Institute of Earthquake Forecasting, CEA, Beijing 100036, China,School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Key Laboratory of Seismic Observation and Geophysical Imaging, Institute of Geophysics, CEA, Beijing 100081, China,School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Fujian Earthquake Agency, Fuzhou 350003, China and School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, China;Geophysical Exploration Center, CEA, Zhengzhou 450003, China |
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| Abstract: | The Western Yunnan Earthquake Predication Test Site set up jointly by the China Earthquake Administration,the National Science Foundation Commission of America,and United States Geological Survey has played an important role in development of early earthquake research work in China. Due to various objective reasons, most of the predicted targets in the earthquake prediction test site have not been achieved,and the development has been hindered. In recent years, the experiment site has been reconsidered,and renamed the "Earthquake Science Experimental Site". Combined with the current development of seismology and the practical needs of disaster prevention and mitigation,we propose adding the "Underground Cloud Map"as the new direction of the experimental site. Using highly repeatable, environmentally friendly and safe airgun sources,we could send constant seismic signals,which realizes continuous monitoring of subsurface velocity changes. Utilizing the high-resolution 3-D crustal structure from ambient noise tomography,we could obtain 4-D (3-D space+1-D time) images of subsurface structures, which we termed the "Underground Cloud Map". The"Underground Cloud Map" can reflect underground velocity and stress changes,providing new means for the earthquake monitoring forecast nationwide,which promotes the conversion of experience-based earthquake prediction to physics-based prediction. |
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| Keywords: | Earthquake Science Experimental Site The Underground Cloud Map 4-D seismology Airgun |
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