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[1]DUAN Yuanze,FU Hong,BAI Baorong,et al.Precipitation Effect Analysis with Deformation Measured Value in Yunxian Seismic Station in Yunnan[J].Journal of Seismological Research,2017,40(02):241-247.

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Precipitation Effect Analysis with Deformation Measured Value in Yunxian Seismic Station in Yunnan

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 40 Number of periods: 2017 02 Page number: 241-247 Column: Public date: 2017-04-23

Title:: Precipitation Effect Analysis with Deformation Measured Value in Yunxian Seismic Station in Yunnan

Author(s):: DUAN Yuanze¹; FU Hong²; BAI Baorong¹; YANG Chunhua¹; LI Zhirong²; (1. Pu’er Seismological Bureau,Pu’er 665000,Yunnan,China)(2. Earthquake Administration of Yunnan Province,Kunming 650224,Yunnan,China)

Keywords:: the cavity strain; inclined pipe; precipitation effect; anomaly extraction; Yunxian Seismic Station

CLC:: P315.725

DOI:: -

Abstract:: In this article,through comparative analysis on the cavity strain and inclined pipe observation value and precipitation in Yunxian seismic station,we found that there have a certain correlation between each other.Quantitative analysis result shows,the total annual precipitation increased by 200 mm,the influence on the cavity strain is 4 000×10^-8 and the influence on the inclined pipe observation value is 90″; The monthly precipitation increased 100 mm,the cavity strain and inclination observation value increase monthly in amplitude,are respectively 38×10^-8 and 2.5″. After constructing the linear equation of monthly precipitation and monthly increment,the residual of measured value and theoretical value are obtained.When the residual quantity is 1 times more than the mean square deviation,there are M≥5.5 earthquakes occurred in the vicinity of 500 km from station in the short term.The nearest distance station from Changning M_S5.1 earthquakes shows the maximum amplitude of anomaly,which shows that the deformation increases after the precipitation disturbance,and are related to the tectonic activity.

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Last Update: 2017-06-10