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Volcano Watch: Kilauea activity update for Thursday (Dec 1)

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Time-lapse movie of Halemaumau Overlook Vent

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

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 (330 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 that had reached to about 6.5 km (4 miles) southeast of Pu`u `O`o, into the top of the Royal Gardens subdivision. The flows traveled through a lava tube that is fed by the September 21 fissure on the upper east flank of the Pu`u `O`o cone. There were also a few tiny, intermittent flows erupted within Pu`u `O`o crater.

One earthquake beneath Hawai`i Island was reported felt this past week. A magnitude-3.0 earthquake occurred at 2:45 p.m., HST, on Monday, November 28, 2011, and was located 3 km (2 mi) southwest of Kalapana at a depth of 8 km (5 mi).

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

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Time-lapse movie of Pu‘u ‘O‘o Cone from the East camera position.

Pu‘u ‘O‘o East webcam location
Halemaumau Overlook vent webcam location

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