Map showing shaded-relief map of ERZ near flow front

This shaded-relief map, courtesy of the Carnegie Airborne Observatory, shows some of the cracks and faults that are present in Kīlauea's East Rift Zone. The June 27th flow is partly transparent and shown in pink, while the active surface lava at 1 PM on September 4 are outlined in red. The front of the western of these three pads of lava was entering another ground crack, which was steaming.