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PIA00375: Io - Volcano Loki and Loki Patera
The detailed structure near the volcano Loki is like nothing seen elsewhere on Io. When NASA's Voyager 1 took this picture, the main eruptive activity came from the lower left of the dark linear feature (perhaps a rift) in the center.
 Target Name:  Io
 Is a satellite of:  Jupiter
 Mission:  Voyager 
 Spacecraft:  Voyager 1
 Instrument:  VG ISS - Narrow Angle 
 Product Size:  800 x 795 pixels (w x h) 
 Produced By:  JPL 
 Producer ID:  260-813A  
 Addition Date:  1996-11-16 
 Primary Data Set:  Voyager EDRs 
 Full-Res TIFF:  PIA00375.tif (517.3 kB)
 Full-Res JPEG:  PIA00375.jpg (51.9 kB)  

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

The detailed structure near the volcano Loki is like nothing seen elsewhere on Io. When this Voyager 1 picture was taken, the main eruptive activity came from the lower left of the dark linear feature (perhaps a rift) in the center. Below is the "lava lake," a U-shaped dark area about 200 kilometers across. In this specially processed image, detail can be seen in the dark surface of this feature, possibly due to "icebergs" of solid sulfur in a liquid sulfur lake. The IRIS on Voyager 1 found this "lava lake" to be the hottest region on Io, with a temperature about 150 degrees Celsius higher than that of the surrounding area.

Image Credit:
NASA/JPL

Image Addition Date:
1996-11-16