The Eratosthenes Seamount is a seamount in the Eastern Mediterranean about 100 km south of western Cyprus. It is a large, submerged massif, about 120 km long and 80 km wide. Its peak lies at the depth of 690 m and it rises 2000 m above the surrounding seafloor, which is located at the depth of up to 2,700 m and is a part of the Eratosthenes Abyssal Plain.