Characteristics of Seismic Source Parameters under the Influence of Fluid---Taking Guangxi Lingyun Fengshan Earthquake Swarm, Longtan Reservoir Earthquakes as Examples
LONG Zheng-qiang
SUN Xue-jun
YAO Hong
LIU Shuang-qing
XIE Ye-yu
WEI Xu-hong
Abstract：In this article ,digital seismic source spectrums of Guangxi earthquakes are analyzed ,w hich in‐clude that induced by storm or reservoir and the natural occurrence .By calculating Lingyun‐Fengshan earthquake swarm ,the earthquakes (ML ≥2 .5) being adjacent to Longtan reservoir and the natural earth‐quake in southeastern Guangxi in 2007 to 2013 ,their parameters of seismic source are acquired respective‐ly .The results indicate that for Lingyun‐Fengshan and Longtan reservoir earthquakes ,their stress drop , source radius and corner frequency are nearly the same at the range of values and the average .Their stress drop and the corner frequency are significantly less than these earthquakes in southeast of Guangxi .And their stress drops are smaller about 1 order of magnitude .However ,the source radiuses are significantly greater than that of the same seismic magnitude in southeast of Guangxi .The above of characteristics show that spectrum analysis of digital seismic wave can also reflect the storm‐induced cause of Lingyun Fengshan earthquake sw arm .
Keywords：earthquake swarmreservoir earthquakesource parametersseismic momentcorner frequen-cy
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 10-16 )