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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

(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 night-time glow that was visible from the Jaggar Museum overlook and via HVO’s Webcam during the past week. A deflation-inflation cycle (DI event) at Kilauea’s summit was accompanied by significant drop in lava level last weekend. The lower level removed support for the rim of the lava lake, leading to several small collapses. By mid-week, the lava level has risen again, but stabilized at a level lower than that of the previous week.

On Kilauea’s east rift zone, surface lava flows are still active on the coastal plain and entering the ocean sporadically near Kupapa`u. The active flows straddle the eastern boundary of Hawai`i Volcanoes National Park. Within Pu`u `O`o, a small lava lake, partly hidden beneath a spatter cone, resides on the northeastern side of the crater floor. In addition, glow emanates from other points on the northwestern and southeastern parts of the crater floor.

Two earthquakes were reported felt in the past week on the Island of Hawai`i. On December 15, 2012, at 9:05 p.m., HST, a magnitude-2.1 earthquake occurred 5 km (3 mi) north of Captain Cook at a depth of 9 km (5 mi). On December 17 at 4:14 p.m., a magnitude-2.3 earthquake occurred 5 km (3 mi) southwest of Kapoho at a depth of 3 km (1.7 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 multi-image composite movie of Pu‘u ‘O‘o Crater

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

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Time-lapse movie of Pu‘u ‘O‘o Crater’s East Flank