Review of the Application ofrRotational Motions in
Seismology
Zhang Pei;Liu Wenyi;Yuan Yi;Li Jun
【期刊名称】《中国地震研究（英文版）》 【年(卷),期】2024(032)004
【摘要】Rotational seismology is an emerging field for studying all aspects of rotational ground motions induced by earthquakes, explosions, and ambient vibrations.It is of interest to a wide range of geophysical
disciplines,
including
strong-motion
seismology,
earthquake engineering, earthquake physics, seismic instrumentation, as well as to the complete description of particle motions (translational motion, rotational motion and deformation). This article mainly summarizes the application of rotational motions to seismology.Based on the collocated measurements of translational motion and rotational motion, the theoretical formulas of calculating the teleseismic Rayleigh wave and the Love wave phase velocity are derived.Taking the Siberian earthquake as an example, the phase velocity structure near the station is calculated.As a ring laser that's sensitive only to SH-type motion, one of the expectations of the ring laser measurements is to help seismologists separate P and S waves in the wave field.It also helps distinguish Love and Rayleigh wave energy in the ocean-generated noise field, as well as determine the back azimuth of oceanic noise
Review of the Application ofrRotational Motions in Seismology
