Kīlauea Volcano — Sluggish Pāhoehoe

Detailed Description
Sluggish pāhoehoe briefly spills over a section the levee along the well-established lava channel. Such overflows generally travel short distances measured in meters (yards). Geologists track the extent of oveflows and look for potential areas of weakness and seepages along the sides of the perched channel in order to assess potential breakouts from the channel.
Sources/Usage
Public Domain.