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Structure-from-Motion source images for an inactive perched lava lake formed at Pu'u'o'o (Kilauea) in 2014 Lava flow hazards are usually thought to end when the erupting vent becomes inactive, but this is not always the case. At Kīlauea in August 2014, a spiny ʻaʻā flow erupted from the levee of a crusted perched lava lake that had been inactive for a month, and the surface of the lava lake subsided as the flow advanced downslope over the following few days. Topography constructed from oblique aerial photographs using structure-from-motion (SfM) software shows that the volume of the flow (~68,000 m3) closely matches the volume of subsidence of the crusted lava lake (~64,000 m3). The similarity of these volumes, along with the textural characteristics of the lava, shows that the lava that fed the flow had been stored... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: East Rift Zone, Island of Hawaiʻi, June 27th flow, Kīlauea, Puʻuʻōʻō, All tags... Pāhoa flow, SfM, State of Hawaii, Structure-from-Motion, aerial photograph, digital elevation model, elevation, lava flow, lava lake, volcano, Fewer tags