Zamama (volcano)
Zamama is an active volcanic center on Jupiter's moon Io. This volcanic center erupted after the Voyager 1 flyby in 1979, making it one of the few planetary volcanoes known to have activated during this generation's lifetime. Further analysis and study by the Galileo spacecraft helped with the overall study of Io's volcanism. Galileo located it on Io at 21°N 173°W / 21°N 173°WCoordinates: 21°N 173°W / 21°N 173°W. Zamama has a fissure-fed-type flow that is 150 km (93 mi) long with temperatures of 1,100 K (830 °C; 1,520 °F), and the volcanic center site has explosive and effusive eruption characteristics. The flow appears to be emanating from the Promethean-type volcano.
...
Wikipedia