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Volcano Watch: Kilauea activity update for June 12, 2014


Time-lapse movie of Halemaumau Crater (6/6/14-6/13/14)


Thermal image movie of Halemaumau Crater (6/6/14-6/12/14)


Halemaʻumaʻu Overlook Vent from HVO (6/6/14-6/12/14)


KÄ«lauea Caldera from HVO (6/6/14-6/12/14)

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

The lava pond in the northeast portion of Puʻu ʻŌʻō crater remains active, and has built up a slightly elevated rim following several overflows over the past week. On June 6, 2014 the pond was gently gas pistoning - a process that involves the cyclic rise and fall of the lava level due to gas buildup and release.

The lava pond in the northeast portion of PuÊ»u ʻŌʻō crater remains active, and has built up a slightly elevated rim following several overflows over the past week. On June 6, 2014 the pond was gently gas pistoning – a process that involves the cyclic rise and fall of the lava level due to gas buildup and release. Photo courtesy of USGS/HVO

An HVO geologist shields his face from intense heat as he dips a rock hammer into an active pāhoehoe toe. After scooping out the lava it is placed in the water to quench it. HVO routinely collects lava samples for chemical analysis, which can give insight into changes in the magmatic system. Photo courtesy of USGS/HVO

An HVO geologist shields his face from intense heat as he dips a rock hammer into an active pāhoehoe toe. After scooping out the lava it is placed in the water to quench it. HVO routinely collects lava samples for chemical analysis, which can give insight into changes in the magmatic system. Photo courtesy of USGS/HVO

A lava lake within Halema‘uma‘u produced nighttime glow that was visible via HVO’s Webcam during the past week. The lava lake level rose during the week, reaching about 40 m (130 ft) below the rim of the Overlook crater by Thursday, June 12.

On Kīlauea’s East Rift Zone, the Kahauale‘a 2 flow remains active. The flow front stalled at 8.8 km (5.5 miles) northeast of its vent on Pu‘u ‘Ō‘ō in mid-May. On Friday, June 6, the most distant active flows were 6.5 km (4.0 miles) northeast of Pu‘u ‘Ō‘ō. Several small spatter cones within the Pu‘u ‘Ō‘ō crater also continued to produce glow.

There was one earthquake in the past week with more than 3 felt reports. On Friday, June 6, 2014, at 4:42 p.m., HST, a magnitude-4.1 earthquake occurred 5 km (3 mi) southeast of the town of Maunaloa, Moloka`i, at shallow depth.

Visit the HVO website (http://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


Pu’u ‘O’o Crater East Flank. (6/6/14-6/12/14)


Multi-image movie of Pu’u ‘O’o Crater. (6/6/14-6/12/14)


Thermal image movie of Pu‘u ‘O‘o Crater (6/6/14-6/12/14)

Map showing the Kahaualeʻa 2 flow in relation to the eastern part of the Island of Hawaiʻi as of June 6, 2014. Red stars mark the fronts of the active breakouts—the most distant was 6.5 km (4.0 miles) straight-line distance northeast of Puʻu ʻŌʻō. 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 (dashed where its position is poorly known).

Map showing the Kahaualeʻa 2 flow in relation to the eastern part of the Island of Hawaiʻi as of June 6, 2014. Red stars mark the fronts of the active breakouts—the most distant was 6.5 km (4.0 miles) straight-line distance northeast of Puʻu ʻŌʻō. 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 (dashed where its position is poorly known).

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