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Volcano Watch: Kilauea activity update for November 28, 2013

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Time-lapse movie of Halemaumau overlook vent

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Time-lapse thermal image movie of Halemaumau overlook vent

(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 via HVO’s Webcam during the past week. A deflation-inflation cycle (DI event) occurred on Friday-Saturday (Nov 22-23) and the lava-lake level fluctuated correspondingly.

On Kīlauea’s East Rift Zone, the Kahauale‘a 2 flow continues to advance slowly into the forest northeast of Pu‘u ‘Ō‘ō. The flow front that had recently reached 7.3 km (4.5 miles) from Pu‘u ‘Ō‘ō is no longer active. Surface flows remain active, however, about 5 km (3 miles) northeast of Pu`u `O`o.

There was one felt earthquake in the past week on the island of Hawai‘i. On Monday Nov 25, 2013, at 4:37 a.m., HST, a magnitude-2.7 earthquake occurred and was located 7 km (4 mi) southwest of Volcano Village at a depth of 32 km (20 mi).

Visit the HVO website (hvo.wr.usgs.gov) for past Volcano Awareness Month articles and current Kīlauea, Mauna Loa, and Hualālai activity updates, recent volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kīlauea summary; email questions to askHVO@usgs.gov.

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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

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

Map showing the Kahaualeʻa 2 flow in relation to the eastern part of the Big Island as of November 27, 2013. The tip of the Kahaualeʻa 2 flow that reached 7.3 km (4.5 miles) from Puʻu ʻŌʻō last week is no longer active. Flows remain active, however, about 5 km (3 miles) northeast of Puʻu ʻŌʻō where they continue to spread into the forest. The area of the area Kahaualeʻa 2 flow as of November 21 is shown in pink, while widening of the flow as of November 27 is shown in red. Older lava flows are distinguished by color: episodes 1–48b flows (1983–1986) are shown in gray; episodes 48c–49 flows (1986–1992) are pale yellow; episodes 50–55 flows (1992–2007) are tan; episodes 58–60 flows (2007–2011) are pale orange, and episode 61 flows (2011–2013) are reddish orange. The active lava tube is shown with a yellow line.

Map showing the Kahaualeʻa 2 flow in relation to the eastern part of the Big Island as of November 27, 2013. The tip of the Kahaualeʻa 2 flow that reached 7.3 km (4.5 miles) from Puʻu ʻŌʻō last week is no longer active. Flows remain active, however, about 5 km (3 miles) northeast of Puʻu ʻŌʻō where they continue to spread into the forest. The area of the area Kahaualeʻa 2 flow as of November 21 is shown in pink, while widening of the flow as of November 27 is shown in red. Older lava flows are distinguished by color: episodes 1–48b flows (1983–1986) are shown in gray; episodes 48c–49 flows (1986–1992) are pale yellow; episodes 50–55 flows (1992–2007) are tan; episodes 58–60 flows (2007–2011) are pale orange, and episode 61 flows (2011–2013) are reddish orange. The active lava tube is shown with a yellow line.

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