Coseismic Strain Observation of the Menyuan MS 6.9 Earthquake in 2022
Abstract This paper takes the Menyuan MS6.9 earthquake in 2022 as an example, fitting the coseismic strain observations of four component borehole strainmeters at 1sps sampling rate from 17 stations with the coseismic strain simulations obtained by using qssp software forward calculation; we then analyze their correlation. The results show that the north-south and east-west P-wave waveforms of 17 stations fit well, and the average correlation coefficients are 0.835 and 0.842, respectively, reaching a high correlation, indicating that the borehole strain observation data can better reflect the seismic fracture information, which further verifies that borehole strain observation data can be used to study the seismic fracture process in theory.
Key words :
borehole strain observation data
coseismic
earthquake rupture process
QSSP
correlation coefficient
Cite this article:
WANG Yulong,ZHANG Yan,WANG Dijin. Coseismic Strain Observation of the Menyuan MS 6.9 Earthquake in 2022[J]. jgg, 2024, 44(2): 177-182.
WANG Yulong,ZHANG Yan,WANG Dijin. Coseismic Strain Observation of the Menyuan MS 6.9 Earthquake in 2022[J]. jgg, 2024, 44(2): 177-182.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2024/V44/I2/177
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