[1]REN Mengyi.The Establishment of Generalized Pareto Distribution Model of Seismicity in Longmenshan Region[J].Journal of Seismological Research,2018,41(02):226-232.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 02
Page number:
226-232
Column:
Public date:
2018-04-20
- Title:
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The Establishment of Generalized Pareto Distribution Model of Seismicity in Longmenshan Region
- Author(s):
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REN Mengyi
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(Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)
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- Keywords:
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seismic activity; generalized pareto distribution; upper magnitude limit; Longmenshan Region
- CLC:
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P315.5
- DOI:
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- Abstract:
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Choosing Longmenshan region as the case study area,using the historical earthquake catalogue with magnitude 4.5 or above, from the year 1930 to 2016,reducing the impact of aftershocks by the method of space and time window,this paper establishes an excess distribution model of Generalized Pareto Distribution,and it estimates the upper magnitude limit of Longmenshan region. The result indicates that the model is well fitting for the earthquake data and the estimate value of shape parameter is less than zero,which means that the maximum magnitude distribution has a limited upper bound. The upper magnitude limit is 8.3. The result can be a reference for earthquake zoning and seismic hazard analysis researches.