[1]DENG Mei,SHEN Jun,LI Xi,et al.Analysis of Paleoseismic Events of the Dahuzhuang Trench at the Xiadian Fault[J].Journal of Seismological Research,2018,41(02):293-301.
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Analysis of Paleoseismic Events of the Dahuzhuang Trench at the Xiadian Fault
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 02
Page number:
293-301
Column:
Public date:
2018-04-20
- Title:
- Analysis of Paleoseismic Events of the Dahuzhuang Trench at the Xiadian Fault
- CLC:
- P315.21
- DOI:
- -
- Abstract:
- The Xiadian fault is an important buried active fault located in the Beijing plain. It is also the seismogenic fault of the Sanhe-Pinggu MS8.0 earthquake occurred in 1679. In order to obtain the complete paleoseismic sequence of the fault,the following two aspects are carried out. First,we reinterpret the Dahuzhuang trench based on the origin trench datum and reveal three paleosol,six collapse wedges and one sand liquefaction. Second,combined with the events revealed by the trenches in other parts of the fault,we established the relationship between the seismic events of different trenches at the same time axis. Then,we get intact paleoseismic sequence of the Xiadian fault. The results show that the Xiadian fault has occurred 11 paleoseismic events(including the 1679 earthquake)since 31 ka and the average recurrence interval of earthquake was 2.82 ka. Meanwhile,there were five strong earthquakes from 25 ka to 15 ka and the average recurrence interval was 2 ka. It reflects that the activity of the Xiadian fault exists differences at different stages.
- References:
- -
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Last Update:
2018-04-23