Figure 5
From: Study of the electromechanical coupling process before the 2020 Ms 6.4 Yutian, China earthquake
LURR time series curve for Benioff strain (a) and geo-electric field (b) before the Yutian earthquake. Par is the mechanism of the main shock used for the Coulomb rupture stress calculation, which is: strike, dip, slip, depth, and friction coefficient; TW is the calculation time window; ST is the sliding time window; the red vertical line is the magnitude and time of the Yutian earthquake; the black dashed line indicates the start and end times of anomalous LURR before the occurrence of the Yutian earthquake; the parallel black dotted line is the threshold line of the anomalous LURR. The precipitation and temperature in the Yutian are also shown in the maps. The synchronous changes in early 2019 are highlighted in the maps by brown arc. The unit of the horizontal axis is time, and the ‘t/a’ means ‘time/year’.
