downdip

1.(3)controls on the updip and downdip limits of the seismogenic zone of subduction thrusts;

③在俯冲逆冲断，发震带的确定；

2.In addition, it is a principle to follow that the formation thickness of upfaulted block is greater than or equal to the downdip block in correlation of subzones as facing faults.

此外，遇到断时，通常遵循正断降盘小厚度应该等于或者大于升盘小厚度的原则。