| Research on characteristics of magnitude structure of earthquake sequences |
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| 作者姓名： | 孙佩卿 李钦祖 戴英华 赵军 |
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| 作者单位： | 赵 军 |
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| 摘 要： | ＲｅｓｅａｒｃｈｏｎｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｍａｇｎｉｔｕｄｅｓｔｒｕｃｔｕｒｅｏｆｅａｒｔｈｑｕａｋｅｓｅｑｕｅｎｃｅｓＰＥＩ－ＱＩＮＧＳＵＮ（孙佩卿）ＱＩＮ－ＺＵＬＩ（李钦祖）ＹＩＮＧ－ＨＵＡＤＡＩ（戴英华）ＪＵＮＺＨＡＯ（赵军）Ｓｅ...
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| 收稿时间： | 3 October 1996 |
| 修稿时间： | 16 September 1997 |
Research on characteristics of magnitude structure of earthquake sequences |
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| Pei-Qing Sun, Qin-Zu Li, Ying-Hua Dai and Jun Zhao.Research on characteristics of magnitude structure of earthquake sequences[J].Acta Seismologica Sinica(English Edition),1998,11(1):43-48. |
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| Authors: | Pei-Qing Sun Qin-Zu Li Ying-Hua Dai and Jun Zhao |
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| Institution: | (1) Seismological Bureau of Hebei Province, 050021 Shijiazhuang, China |
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| Abstract: | Based on the research on 108 strictly selected earthquake sequences since 1965 in the Chinese mainland, why the magnitude
structures of most of these sequences are not in accord with the G-R relation has been analyzed and the fitting method with
the division of the magnitude structure for the earthquake sequences has been suggested. The characteristic values of this
method in the high magnitude interval have mainly been researched, and characteristic magnitude percentf and the slope ratiob
2 of the high magnitude interval, which are different for various sequence types are most obvious. The results show that theN-M patterns of magnitude structures for 52.8% earthquake sequences are not in accord with the G-R relation from the magnitude
less than 80% of the maximum one and that for only 18.5% earthquake sequences show the decrease trend in the high magnitude
interval. Whenb
2<0 or 0≤b
2<3.0 andf is less, the strong aftershocks in the earthquake sequences are less; whenb
2≥3.0 for the sequence, several strong aftershocks often occurred; when 0≤b
2<3.0 andf is bigger, aftershocks with middle magnitude are more in these sequences.
This subject is supported by the key project of earthquake imminent prediction during "8-th Five-Year" from State Seismological
Bureau(84-04-03-01-09). |
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| Keywords: | earthquake sequence magnitude magnitude characteristic |
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