| Below:
Galileo view of a 1200 km wide region of Io on 4 April 1997 (left) and 19
September 1997 (right). Between these two dates a short-lived high-temperature
eruption plume occurred at Pillan Patera that distributed a 400 km wide
patch of dark material around the vent, which is the most obvious difference
between the two images. The fainter 1000 km diameter ring to the left marks
the edge of the plume from a long-lived eruption of Pele volcano. |
 |
Above:
Successive close-up views of the area indicated, culminating with a 7.2
km long strip of lava-covered terrain imaged by Galileo from a range of
617 km during a close flyby of Io on 10 October 1999. |
|
