Another, younger rift (1 Ma), the Pleistos Valley, has opened to north of and parallel to the Corinthian Gulf. The scarp of its normal fault is still visible across the north wall of the valley.
Another, more recent geological formation (around 1 million years old), the Pleistocene Valley, has emerged to the north of and parallel to the Corinthian Gulf. The scarp of its normal fault is still visible across the northern part of the valley.