What does "the ridge was offset at right angles to its length" mean in "several places where the ridge was offset at right angles to its length"?

I'm trying to interpret the sentence "several places where the ridge was offset at right angles to its length" which is in the entry for the word "offset" in Oxford English Dictionary. The definition for the corresponding entry is:

Which is quite straightforward. However, I can't relate this explanation into the specific sentence above. I know that the ridge has been out of place at some places, but how does it look exactly?

I've tried to create a draw as below but not sure the visual for "right angle to its length" is correctly interpreted.



OP's query:

What does "the ridge was offset at right angles to its length" mean in "several places where the ridge was offset at right angles to its length"?

Answer: OP's interpretation of "offset" (placed out of line) is correct. However, the diagram provided may be unclear. Upon researching, I found that the phrase is from an article on:

The Mid-Ocean Ridge:

"As they mapped the Ridge with sounding devices, they found "several places where it was offset at right angles to its length." In 1965 J. Tuzo Wilson of the University of Toronto identified these discontinuities as transform faults: a boundary formed perpendicular to the length of the ridge, where the edges of tectonic plates slide past each other in opposite directions."

The diagram below of transform faults illustrates what is meant by "offset at right angles to its length":

. Two transform faults offsetting a mid-oceanic ridge.

[Encyclopedia Britannica]

By following the red line, OP can observe how the ridge is interrupted and shifted by the transform faults, resulting in the stepped or segmented ridge pattern.