This video shows a virtual flyover of Pu‘u ‘Ō‘ō, the active vent
on Kīlauea's East Rift Zone. The 3-D model was constructed from thermal
images collected by USGS Hawaiian Volcano Observatory geologists during a helicopter overflight on April 18. In this model, the active lava
pond in west pit, a small crater adjacent to the main Pu‘u ‘Ō‘ō crater, appears hotter (bright yellow) than the surrounding area. The floor of the main crater has been uplifting due to increasing pressure within the magma
system beneath Pu‘u ‘Ō‘ō. For scale, the main crater is about 280 m (920 feet) in diameter.