Abstract Based on strong motion acceleration records of Hubei Yingcheng M4.9 earthquake on 2019-12-26, we process the baseline correction and filtering and analyze the distribution characteristics of the ground motion. The results show that the peak ground acceleration (PGA) recorded in this earthquake attenuate rapidly with distance; the site effect, the hanging wall effect, and the rupture directivity effect cause the great differences among the ground motions. The data recorded at Yingcheng station are processed by rotating correction. There are obvious differences between the records along fault direction and those in perpendicular-to-fault direction and vertical direction, in which exists an analogous simple harmonic strong motion with a period of about 0.3 s, which is consistent with the focal mechanism mainly characterized by strike slip.
LI Heng,LEI Dongning,FAN Kexian. Characteristics of Strong Motion Recordings of Hubei Yingcheng M4.9 Earthquake on 26 December 2019[J]. jgg, 2020, 40(6): 551-554.
LI Heng,LEI Dongning,FAN Kexian. Characteristics of Strong Motion Recordings of Hubei Yingcheng M4.9 Earthquake on 26 December 2019[J]. jgg, 2020, 40(6): 551-554.