Start of sequence of 6 images
Detailed Description
Start of sequence of 6 images taken over 35 seconds, showing stages of gas-piston drainback. Lava welled out from East Pond Vent to form shallow pool. A gas piston is interpreted to have lifted the lava to the surface, where it spilled onto crater floor. Top of piston is just reaching surface and starting to spatter. January vent is behind East Pond Vent.
Sources/Usage
Public Domain.