the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
The Effect of the Wenchuan and Lushan Earthquakes on the Size Distribution of Earthquakes along the Longmenshan Fault
Abstract. Changes in the stress state of faults and their surroundings is a highly plausible mechanism explaining earthquakes interaction. These stress changes can impact the seismicity rate and the size distribution of earthquakes. However, the effect of large earthquakes on the earthquake size distribution along the Longmenshan fault has not been quantified. We evaluated the levels of the b value for the stable state before and after the large earthquakes on 12 May 2008 (Wenchuan, MS 8.0) and 20 April 2013 (Lushan, MS 7.0) along the Longmenshan fault. We found that after the mainshocks, the size distribution of the subsequent earthquakes shifted toward relatively larger events in the Wenchuan aftershock zone (b value decreased from 1.03 to 0.84), and generally remained invariable in the Lushan aftershock zone (b value remained at 0.76). The time required for the b value to return to stable states after both mainshocks were entirely consistent with the time needed by the aftershock depth images to stop visibly changing. The result of the temporal variation of b values show decreasing trends for the b value before both large earthquakes. Our results are available for assessing the potential seismic risk of the Longmenshan fault as a reference.
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Interactive discussion
Status: closed
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EC1: 'Editor Comment on nhess-2021-21', Oded Katz, 02 Jul 2021
Following the authors request (posted below) to withdraw this manuscript (nhess-2021-21). I am closing the Discussion.
Oded Katz
Handling EditorÂ
Dear Lorena Grabowski,
Sorry to bother you. Given the long preprint time. I am sorry to inform you that we have decided to withdraw the manuscript<The Effect of the Wenchuan and Lushan Earthquakes on the Size Distribution of Earthquakes along the Longmenshan Fault>.Â
Could you please tell me how to withdraw the maniscript?Â
Please reply to me as soon as possible.Â
Â
Kind regards,
Chun Hui
Â
Citation: https://doi.org/10.5194/nhess-2021-21-EC1
Interactive discussion
Status: closed
-
EC1: 'Editor Comment on nhess-2021-21', Oded Katz, 02 Jul 2021
Following the authors request (posted below) to withdraw this manuscript (nhess-2021-21). I am closing the Discussion.
Oded Katz
Handling EditorÂ
Dear Lorena Grabowski,
Sorry to bother you. Given the long preprint time. I am sorry to inform you that we have decided to withdraw the manuscript<The Effect of the Wenchuan and Lushan Earthquakes on the Size Distribution of Earthquakes along the Longmenshan Fault>.Â
Could you please tell me how to withdraw the maniscript?Â
Please reply to me as soon as possible.Â
Â
Kind regards,
Chun Hui
Â
Citation: https://doi.org/10.5194/nhess-2021-21-EC1
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Cited
2 citations as recorded by crossref.
Chun Hui
Changxiu Cheng
Peichao Gao
Jin Chen
Jing Yang
Min Zhao
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