My fault interpolation not quite right?

[hangjiankiwi]

Hi, I am trying to replicate a known structural geology from a dataset I made up. These faults (named first to fourth in the pic attached) are parallel and stretching along the x axis. The interpolated faults however seem to do zig-zag which is not right.

Much appreciated for any thoughts, thanks!

[SimonVirgo]

At first glance I would assume your orientations are off by 90 degree. Did you use strike/dip instead of azimuth/dip connotation?

[hangjiankiwi]

Thanks Simon. yes, you are right, I just tested and I was off by 90 degrees.