अश्वानाम् of the horses, खुरशब्देन by the sounds hoofs, रथनेमिस्वनेनच rattling of the chariots, शङ्खदुन्दुभिघोषेण by the sounds of drums and conches, मेदिनी earth, सञ्चचालेव shook

The earth shook by the sounds of hooves of the horses, sounds of conches and drums, and the rattling of the chariot wheels.