An earthquake struck Nicomedia, killing the bishop Cecropius of Nicomedia, and in 359 the eastern council met at Seleucia Isauria instead. The council was bitterly divided and procedurally irregular, and the two parties met separately and reached opposing decisions. Basil of Ancyra and his party declared that the Son was of similar substance to the Father, following a (Homoiousian) Creed of Antioch from 341, and deposed the opposing party. Acacius of Caesarea declared that the Son was like the Father, introducing a new (Homoian) creed. The Son was begotten – generated from God's own substance.