Abstract By comparing the observation curves of the seismometer and the borehole strainmeter at Renhe station, the Pg wave velocity of several local earthquakes is calculated by sliding analysis method. Considering the influence of reflection wave and the measurement validity, the Pg wave velocity of Renhe station is finally measured to be 5.98 km/s, which is very close to the P wave velocity of the upper crust of the Yunnan 2015 crustal velocity model. The work in this paper shows that the borehole strainmeter can be used as a seismic instrument after accurate calibration to make up for the deficiency of the seismometer in the observation of low frequency events.
ZHAO Shuxian,ZHANG Yongqing,QIU Zehua et al. Joint Measurement of Local Earthquake Pg Wave Velocity from Seismometer and Borehole Strainmeter[J]. jgg, 2023, 43(8): 865-868.
ZHAO Shuxian,ZHANG Yongqing,QIU Zehua et al. Joint Measurement of Local Earthquake Pg Wave Velocity from Seismometer and Borehole Strainmeter[J]. jgg, 2023, 43(8): 865-868.