Original sentence: Further to the south west (approximately 150 km) lies the active volcanic island of Barren Island, the only active volcano in the region.However on June 8 2005 there were reports of "mud and smoke" being ejected from the volcano.It is currently classified as a dormant volcano by the Geological Survey of India.The island is formed from a volcano, which is not known to have been active in recent times
Edited sentence: Further to the south west (approximately 150 km) lies the active volcano island of Barren Island.If the reports were accurate this would alter the scientific status of Narcondam to active.It was classified as a dormant volcano by the Geological Survey of India.The island is formed from a volcano, which had not known to have been active in recent times, until on June 8 2005 there were reports of "mud and smoke" being ejected from the volcano