[1]ZHOU Qing-yun,ZHOU Shi-yong,CHEN Qi-fu,et al.Forward Inference of the Causative Fault and the Slip Angles of the Faults of the 1730 Western Beijing Earthquake[J].Journal of Seismological Research,2008,31(04):369-376.
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Forward Inference of the Causative Fault and the Slip Angles of the Faults of the 1730 Western Beijing Earthquake
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
31
Number of periods:
2008 04
Page number:
369-376
Column:
Public date:
2008-04-23
- Title:
- Forward Inference of the Causative Fault and the Slip Angles of the Faults of the 1730 Western Beijing Earthquake
- Keywords:
- historical earthquake; finite-difference method; fault parameter; ground acceleration; Beijing
- CLC:
- P315.2
- DOI:
- -
- Abstract:
- In 1730 AD,an earthquake with magnitude 61/2 occurred in the western suburb of Beijing.The then government of Qing Dynasty dispatched persons to investigate and record the damages in Beijing and surroundings caused by the earthquake.In this paper,through setting up some standards,we quantify the damage records of the earthquake and obtain the distribution of the damage intensity.We use finite-difference method to calculate the ground accelerations caused by two possible seismogenic faults(NE-trend Qinghe concealed fault and NW-trend Dongbeiwang-Xiaotangshan fault)for the given rake angle of 0° and 90°.By comparing and fitting the spatial distribution of the calculated peak ground acceleration with that of the damage intensity obtained from the historical records,we estimate the relative contribution of the two faults and their rake angles,and refer that the main seismogenic fault is the Dongbeiwang-Xiaotangshan fault.Since the results may be dependent on the models applied to quantifying the damage records,we experiment with different models to assess their effect on the results.
- References:
- -
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Last Update:
2008-04-23