| 一次全球性新的地震活动高潮 |
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| 引用本文： | 邓起东.一次全球性新的地震活动高潮[J].中国地震研究,2013,27(3):282-287. |
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| 作者姓名： | 邓起东 |
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| 作者单位： | 中国地震局地质研究所,活动构造与火山重点实验室,北京 100029 |
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| 基金项目： | This project was sponsored by the “Scientific Prospection Drilling of the Wenchuan Earthquake Fault Zone”of the National Key Technology R＆D Program， China． |
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| 摘 要： | This paper studies the temporal and spatial distribution of great global earthquakes( M W≥8.0) since 1900.We compare the two periods of upsurges of great earthquakes occurring in the middle of last century and beginning of this century.The former period took place between 1950 and 1965 during which 13 great earthquakes( M W≥ 8.0) occurred,including three events with moment magnitude greater than 9.0.The largest magnitude in this period reached 9.6.The latter period starts from the beginning of this century.In less than 12 years,15 great earthquakes have attacked the world with the largest magnitude being M W9.1.On the basis of comparison between these two upsurges of global earthquake activity,we infer that the ongoing high level of earthquake activity may continue for another five years or so.Numerous great earthquakes( M W≥8.0) and many large earthquakes( M W6.0~7.0) will occur globally in these five years.In addition,this paper also discusses the relationships between earthquake activity along the Sumatra segment of the Indian-Australia plate boundary and that in the Bayankala block in the middle of Qinghai-Tibetan plateau as well as in the blocks of the southern plateau.The results indicate that the Qinghai-Tibetan plateau,in particular its middle and southern parts,is a likely place for future earthquakes of magnitude over 7.0.
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| 关 键 词： | Global seismicity Upsurge Seismic risk |
| 收稿时间： | 7/3/2012 12:00:00 AM |
A New Upsurge in Global Seismicity |
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| Deng Qidong.A New Upsurge in Global Seismicity[J].Earthquake Research in China,2013,27(3):282-287. |
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| Authors: | Deng Qidong |
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| Institution: | Deng Qidong;Key Laboratory of Active Tectonics and Volcano,Institute of Geology,CEA; |
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| Abstract: | |
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| Keywords: | Global seismicity Upsurge Seismic risk |
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