Eruptions are recorded in 1902, 1970 and 1993. A report of smoke emission in 1877 may have confused clouds for volcanic activity. In 1914, the volcano was described to be belching out clouds of smoke, although a report in 1971 indicated the absence of historical activity. These eruptions were accompanied by earthquake activity. During the eruption of 1902, heavy smoke and a night time glow on the volcano were observed. The eruption in 1993 involved a c. long lava flow, but it may have been a flow of molten sulfur. The volcano is currently classified as a dormant volcano. Satellite imagery indicates, however, that ground deformation occurs at Taftan. Unofficial volcano hazard maps have been developed.