A fissure that formed during an eruption of Pagan volcano in the Mariana Islands in 1981 cuts across the summit of the volcano. Three principal vents were active along the fissure. A cinder cone (foreground) was constructed on the north flank, and vents on the north and south rims of the summit crater fed lava flows that traveled down the flanks of North Pagan volcano. This June 16, 1981 photo shows South Pagan volcano at the upper right.
Type/Process: Fissure Vent
Volcanic Status: Historical
Image Number: 021-015
Photographer: U.S. Navy.
Summit Elevation: 570 meters
Latitude/Longitude: 18.13 N / 145.80 E
Timeframe: Last known eruption 1964 or later
Region: Japan, Taiwan, and Marianas