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Halemaumau Overlook vent time-lapse movie

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Halemaumau Overlook vent thermal imaging time-lapse movie

(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. Since achieving an unusually high level during October, the lava lake has dropped to a deeper level within the Overlook crater. Over the past week, the lava level was relatively steady, but rose briefly during a few short-lived rise-fall cycles.

Thermal image panorama showing the Peace Day flow (episode 61) on the coastal plain. The view is to the southwest. The bright areas are active lava, while the less bright areas are warm but inactive flows. Photo courtesy of USGS/HVO

On Kilauea’s east rift zone, surface lava flows are still slowly moving across the coastal plain. As of Tuesday, November 20, the flow front had reached to within 175 m (575 feet) of the ocean and was advancing steadily, straddling the Hawai`i Volcanoes National Park boundary. Within the Pu`u `O`o crater, the northeastern pit still holds a small lava lake, and occasional small flows were erupted from a few openings near the southeastern edge of the crater.
One earthquake beneath Hawai`i Island was reported felt in the past week. On November 18 at 6:26 a.m. HST, a magnitude-3.2 earthquake occurred 18 km (11 mi) northwest of Na`alehu at a depth of 8 km (5 mi).

Visit the HVO Web site (http://hvo.wr.usgs.gov) for detailed 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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Kilauea’s Peace Day Flow time-lapse movie

Map showing the extent of lava flows erupted during Kīlauea’s ongoing east rift zone eruption and labeled with the years in which they were active. Episodes 1–48b (1983–1986) are shown in gray; episodes 48c–49 (1986–1992) are pale yellow; episodes 50–53 and 55 (1992–2007) are tan; episode 54 (1997) is yellow; episode 58 (2007–2011) is pale orange; the episode 59 Kamoamoa eruption (March 2011) is at left in light reddish orange; and the episode 60 Puʻu ʻŌʻō overflows and flank breakout (Mar–August 2011) are orange. The currently active Peace Day flow (episode 61) is shown as the two shades of red—light red is the extent of the flow from September 21, 2011, to November 8, 2012, and bright red marks the mapped flow expansion from November 8 to November 20. There may have been minor flow margin changes upslope, in and above the upper part of Royal Gardens, which have not been mapped and are not shown on this map. The active lava tube is delineated by the yellow line within the active flow field. Incipient tubes extend onto the coastal plain to feed the currently active flows, but these have not been mapped. The contour interval for topographic lines shown on Puʻu ʻŌʻō is 5 m.