Rather wide breakout
![photo of lava](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/20030408-2667_DAS_large.jpg?itok=UGWRYqM3)
Detailed Description
Rather wide breakout coming from inflating tumulus (right) and moving slowly toward photographer. Note deep, widely spaced corrugations and wrinkles in crust on decelerating flow.
Sources/Usage
Public Domain.