On June 27, 2014, new vents opened on the northeast flank of the Puu Ōō cone that fed a narrow lava flow to the east-northeast. On August 18, the flow entered a ground crack, traveled underground for several days, then resurfaced to form a small lava pond. The sequence was repeated twice more over the following days with lava entering other cracks and reappearing farther downslope. In this way, the flow had advanced approximately 13.2 km (8.2 miles) from the vent, or to within 1.3 km (0.8 miles) of the eastern boundary of the Wao Kele o Puna Forest Reserve, by the afternoon of September 3. Advancing to the northeast at intermittent rates, the flow had entered the village of Pāhoa and was within 25 meters (27 yards) of the waste recycling center on October 31.