अतिकायस्य of loud roar, दुरात्मनः evil minded, तस्य his, तेनवादेन by that sound, सर्वभूतानि all living beings, वित्रेसुः feared, सागरश्च even the ocean, प्रचुक्षुभे set to commotion

By the loud roar of the evilminded Ravana's sound, all living beings feared and even the ocean was set to tremble.