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Photo looking southwest at the lava lake in Pu‘u ‘Ō‘ō crater. Starting by July 25, lava began to exit Pu‘u ‘Ō‘ō through a gap in the southwest side of the Pu‘u ‘Ō‘ō cone, and flowed a short distance down Pu‘u ‘Ō‘ō's flank. By July 29, lava had begun to pond on Pu‘u ‘Ō‘ō's southwest flank, completely filling the Puka Nui and MLK pits.
Another photo of the Pu‘u ‘Ō‘ō crater, this one looking northwest. In addition to flowing out of the crater to the southwest, lava has also been filling in the northeast side of the crater. Lava there is within 6 m (20 ft) of the crater rim. The gas plume from the vent at Kīlauea's summit is in the background. The gentle slope of Mauna Loa volcano forms the skyline beyond.
Starting in late June, the crater floor around the lava lake began to uplift. The photo here shows the flank of the east side of the lava lake. Prior to uplift, this steeply dipping surface was nearly flat-lying.
The lava lake within Pu‘u ‘Ō‘ō stands higher than the surrounding crater floor. The elevation of the lava lake surface is roughly even with the east rim of Pu‘u ‘Ō‘ō. This photo, from a slightly higher portion of the east rim, looks across the lava lake surface to the opposite lake rim.
The lava accumulating on the southeast side of the crater has begun to form a low shield that extends out from the crater and has buried the Puka Nui and MLK pits. Compare this photo to one taken last week (July 21) from the same spot.
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