Small-scale map of June 27th flow in Kīlauea's ERZ

This small-scale map shows the June 27th lava flow in Kīlauea's East Rift Zone in relation to lower Puna. The area of the flow on November 10 at 10:45 AM is shown in pink, while widening and advancement of the flow as mapped on November 12 at 7:00 AM is shown in red. The latitude and longitude of the front of the narrow finger of lava advancing toward Pāhoa was 19.49544, -154.95292 (Decimal Degrees; WGS84). All older Pu‘u ‘Ō‘ō lava flows (1983-2014) are shown in gray; the yellow line marks the active lava tube.

The blue lines show steepest-descent paths calculated from a 1983 digital elevation model (DEM; for calculation details, see http://pubs.usgs.gov/of/2007/1264/). Steepest-descent path analysis is based on the assumption that the DEM perfectly represents the earth's surface. DEMs, however, are not perfect, so the blue lines on this map can be used to infer only approximate flow paths.