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No activity was observed on the Peace Day flow on today's overflight, meaning that the Kahauale‘a 2 flow is now the sole active flow. The Kahauale‘a 2 flow today had reached 6.4 km (4.0 miles) northeast of Pu‘u ‘Ō‘ō, and was burning vegetation around the forest boundary.
Much of the Kahauale‘a 2 flow has traveled over ‘A‘ā from Pu‘u ‘Ō‘ō's early activity in the 1980s. This photo shows a lobe of the Kahauale‘a 2 flow advancing over a section of this older ‘A‘ā, burning moss and small trees that have grown on the ‘A‘ā clinker.
Active pāhoehoe breakouts are scattered across portions of the Kahauale‘a 2 flow. This photo shows a nice example of ropy pāhoehoe active near the flow margin.
Very few surface flows have been observed in Pu‘u ‘Ō‘ō crater over the past month, but the crater today was far from quiet. The spatter cone shown here, in the northern portion of the crater, was producing a loud, continuous jetting sound resulting from gas being forced through a tiny opening at the peak.