| Discrimination between nuclear explosions and earthquakes based on consideration of tectonic ambient shear stress values |
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| 作者姓名： | 陈培善 成瑾 白彤霞 |
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| 作者单位： | CHEN Pei-shan CHENG Jin BAI Tong-xia Institute of Geophysics，China Seismological Bureau，Beijing 100081，China |
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| 基金项目： | State Natural Science Foundation (49874010). |
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| 摘 要： | IntroductionFor the need of a nuclear test ban treaty, international society must make great efforts to find effective methods for discrimination between earthquake and nuclear explosion. Thereupon, many methods of discrimination of nuclear explosion appeared. But, at present, there is some uncertainty to discriminate middle or small nuclear explosion (Peppin, McEvilly, 1974; Richards, Zarales, 1990). When we study tectonic ambient shear stress field of Southern California, we find that str…
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Discrimination between nuclear explosions and earthquakes based on consideration of tectonic ambient shear stress values |
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| CHEN Pei-shan,CHENG Jin,BAI Tong-xia.Discrimination between nuclear explosions and earthquakes based on consideration of tectonic ambient shear stress values[J].Acta Seismologica Sinica(English Edition),2001,14(3):259-262. |
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| Authors: | CHEN Pei-shan CHENG Jin BAI Tong-xia |
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| Institution: | Institute of Geophysics, China Seismological Bureau, |
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| Abstract: | On the basis of fracture mechanics earthquake rupture model, the relations between source parameters and (0, the value of tectonic ambient shear stress in the place where the earthquake occurs, have been derived. Thus, we can calculate a large number of values of tectonic ambient shear stress or values of background stress in the place where the earthquake occurs. If nuclear explosions are treated as earthquakes in the calculation, we find that (0 values of nuclear explosions have about 20 MPa, which is obviously higher than average (0 values of earthquakes with the same magnitude. This result can be used to discriminate nuclear explosions from earthquakes. |
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| Keywords: | tectonic ambient shear stress field earthquake nuclear explosion discrimination of nuclear explosions from earthquakes level of stress field |
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