The ratio of poloidal to toroidal component of mantle convection determined the proportion of seismic energy released in the thrust, normal, or strike-slip earthquakes.
地幔对流的垂直运动与水平运动分量的比率，决定了逆冲、引张与走滑型强震的能量释放份额。
2
The focal mechanism is mainly left-lateral strike-slip, with a small thrust component.