Changes in lava flows intensify questions to scientists
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Detailed Description
Aerial view looking west at the end of the active flows moving east from the open channel (flows are black in middle foreground). A new lava tube is feeding lava to the flow front, located about 3.5 km (2.2 miles) from the end of the lava channel as of October 31. A tube was also supplying lava to less active pahoehoe flows on the north side of the flow field (out of view, middle right). The breached cone (Pu`u Ki`ai) and channel in lower left were erupted in 1977. This older channel fed lava flows that traveled south to within about 1.6 km (1 mi) of Kalapana. Pu`u `O`o can be seen fuming near top left, and Mauna Loa is the huge hump at top right. Photograph by Tim Orr, U.S. Geological Survey; 31 October 2007.