Fault zone Q values derived from Taiwan Chelungpu Fault borehole seismometers (TCDPBHS)

► We used the 7-level TCDP borehole seismometers array data to estimate the Qs and Qp value near the Chelungpu fault zone. ► We obtained consistent Q values from the two independent methods, spectral ratio and spectral fitting. ► The values of Qs and Qp were 21-22 and 27-35, respectively. ► Qs values within the Chelungpu Fault, similar to those within the San Andreas Fault. ► The result suggests that the Q structure within the fault zone is sedimentary rock independent.