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(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

Ground view looking at the terminus of the active episode 61 pahoehoe flows. Pu‘u ‘O‘o, the source of the flows, is hidden in the clouds at the top of the photo, just left of center. Photo courtesy of USGS/HVO

A lava lake was present within the Halema`uma`u Overlook vent over the past week, resulting in night-time glow that was visible from the Jaggar Museum overlook. The lake, which is about 100 m (328 ft) below the floor of Halema`uma`u and visible by Webcam, rose and fell slightly during the week in response to back-to-back deflation-inflation cycles.

Eruptive activity on Kilauea’s east rift zone was restricted to surface flows about 3.5 km (2.2 miles) east-southeast of Pu`u `O`o. These flows travel through a lava tube that is fed by the September 21 fissure on the upper east flank of the Pu`u `O`o cone. As of Thursday, November 3, the front of the active flows had reached the end of the `a`a flow that started this eruptive episode and which was active September 21–22, 2011.

No earthquakes beneath Hawai`i Island were reported felt this past week.
Visit the HVO Web site (http://hvo.wr.usgs.gov) for detailed Kilauea and Mauna Loa activity updates, recent volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kilauea summary; email questions to askHVO@usgs.gov

View looking northwest through rain at the silvery flows at the front of the active episode 61 flow field. Pu‘u ‘O‘o is hidden in the clouds in the top left part of the photo. The a‘a flow at bottom center is the inactive terminus of the initial flow emplaced on September 21–22, 2001, after the episode 61 fissure on Pu‘u ‘O‘o’s east flank opened on September 21. The active flows reached the front of the ‘a‘ā flow several hours later. Photo courtesy of USGS/HVO