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Volcano Watch: Kilauea activity update for March 14, 2013

This photo looks northeast and shows Puʻu ʻŌʻō crater. Recent activity has been focused around a few spatter cones on the crater floor. At the far edge of the crater, a small lava pond has been active and has been the source of flows extending northeast of Puʻu ʻŌʻō. Those flows are visible at the top-center of the photo. Just below the horizon two small sources of smoke mark where the flow front is burning lichen and moss covering older ʻaʻā flows. Photo courtesy of USGS/HVO

This photo looks northeast and shows Puʻu ʻŌʻō crater. Recent activity has been focused around a few spatter cones on the crater floor. At the far edge of the crater, a small lava pond has been active and has been the source of flows extending northeast of Puʻu ʻŌʻō. Those flows are visible at the top-center of the photo. Just below the horizon two small sources of smoke mark where the flow front is burning lichen and moss covering older ʻaʻā flows. Photo courtesy of USGS/HVO

A closer look at the flow extending northeast of Puʻu ʻŌʻō. Puʻu ʻŌʻō cone is at the right edge of the photo, and view is towards the northeast. In the foreground, two sources of fume mark the path of the lava tube supplying lava to the flow front. In the top-left, a few sources of smoke mark where the flow margin is burning moss and lichen on older flows. On Friday (March 15), the flow front was just over 4 km (2.5 miles) from the vent on Puʻu ʻŌʻō. Photo courtesy of USGS/HVO

A closer look at the flow extending northeast of Puʻu ʻŌʻō. Puʻu ʻŌʻō cone is at the right edge of the photo, and view is towards the northeast. In the foreground, two sources of fume mark the path of the lava tube supplying lava to the flow front. In the top-left, a few sources of smoke mark where the flow margin is burning moss and lichen on older flows. On Friday (March 15), the flow front was just over 4 km (2.5 miles) from the vent on Puʻu ʻŌʻō. Photo courtesy of USGS/HVO

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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 in response to summit deflation–inflation cycles, ranging between about 25 and 60 m (80–200 ft) below the floor of Halema`uma`u.

On Kilauea’s east rift zone, breakouts from the Peace Day tube remain active above and at the base of the pali and on the coastal plain. Small ocean entries are active on both sides of the Hawai`i Volcanoes National Park boundary. In addition, the Kahauale`a flow, fed directly from a spatter cone on the northeastern edge of Pu`u `O`o’s crater floor, continues to advance slowly toward the northeast across a plain of 1980s-era `a`a flows.

There were no felt earthquakes in the past week on the Island of Hawai`i.

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 the Peace Day Flow area

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

The active Peace Day flow as of March 15, 2013, is shown in light reddish orange, and the active Kahaualeʻa flow north of Puʻu ʻŌʻō is shown in pink. Widening of both flow fields between February 25 and March 15—subdivided because they are fed from separate sources—is shown in bright red. Changes to both flow fields above the pali are approximate. Older lava flows are 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 50–55 (1992–2007) are tan; and episodes 58–60 (2007–2011) are pale orange. The contour interval for topographic lines shown on Puʻu ʻŌʻō is 5 m.

The active Peace Day flow as of March 15, 2013, is shown in light reddish orange, and the active Kahaualeʻa flow north of Puʻu ʻŌʻō is shown in pink. Widening of both flow fields between February 25 and March 15—subdivided because they are fed from separate sources—is shown in bright red. Changes to both flow fields above the pali are approximate. Older lava flows are 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 50–55 (1992–2007) are tan; and episodes 58–60 (2007–2011) are pale orange. The contour interval for topographic lines shown on Puʻu ʻŌʻō is 5 m.

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