What would cause a deep vertical gorge in a mountainside, on Earth?

I'd like earthquakes to cause deep gullies along some mountainsides of my planet. Here on earth, vertical fault scarps can form from earthquakes, but the examples I see online tend to be less gully - like and more sheer face like.

I need gullies. I do not want water to form these gullies. But, I am not certain earthquakes would be realistic.

The tectonics do not need to work the same on my planet, as on Earth, but I would like the idea to be grounded in reality.

Can seismic forces cause a series of regularly occurring large vertical gorge features on mountainsides? Like 100 feet across and forty feet deep; the length of the mountain. Something you would not want to accidentally fall into.

Would rifting be a better geological explanation?

posted over 6 years ago

DPT‭

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