3. Stress results
We calculate the combined ΔCFS before and after the 2022 Mw 6.6 Menyuan
earthquake, caused by 12 historical earthquakes in and around the
Qilian-Haiyuan fault system from 1920 to 2022. The calculated ΔCFS
includes contributions from the co-seismic stress changes and
postseismic stress relaxation. The viscosities of the middle and lower
crusts and the mantle can be found in Table S2 (Supporting Information
Text S2), and more details of the visco-elastic model can be found in
the Supporting Information.