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Volcano Watch: Kilauea activity update for February 7, 2013

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Time-lapse multi-image movie of Pu‘u ‘O‘o Crater

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Time-lapse thermal-image movie of Pu‘u ‘O‘o Crater

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

A lava lake within the Halema`uma`u Overlook vent produced nighttime glow that was visible from the Jaggar Museum overlook and via HVO’s Webcam during the past week. The lake level fluctuated slightly in response to summit DI events but was generally about 30 m (100 ft) below the floor of Halema`uma`u.

On Kilauea’s east rift zone, surface lava flows remain active about a kilometer (0.6 miles) out from the base of the pali, as well as near the coast. Weak ocean entries scattered along the sea cliff remain active on both sides of the Hawai`i Volcanoes National Park boundary. At Pu`u `O`o, lava erupting from a complex of spatter cones on the northeast side of the crater floor — the former site of a small lava lake — travels down the northeastern flank of the Pu`u `O`o cone via an incipient lava tube. This lava is feeding a slow-moving pahoehoe flow spreading at the northern base of the cone. Also, a patch of surface flows was active about 5 km (about 3 km) southeast of Pu`u `O`o, above the pali.

There was one felt earthquake in the past week on the Island of Hawai`i. A magnitude-3.1 earthquake occurred at 6:44 p.m., HST, on Sunday, February 5, 2013, and was located 10 km (6 mi) southeast of Ho`okena at a depth of 28 km (18 mi).

Visit the HVO Web site (http://hvo.wr.usgs.gov) for Volcano Awareness Month details and Kilauea, Mauna Loa, and Hualalai 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 Halemaumau overlook vent

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Time-lapse thermal image movie of Halemaumau overlook vent

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Time-lapse movie of the Peace Day Flow area

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