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April 13, 2012

Continued activity on coastal plain and lava pond in Pu‘u ‘Ō‘ō

A small lava pond, set within a collapse pit, has been active in the eastern portion of Pu‘u ‘Ō‘ō

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"DI" tilt events measured at Kīlauea summit March 1-7, 2012. Deflat...
March 29, 2012

"DI" tilt events measured at Kīlauea summit Mar. 1-7, 2012. Deflati...

Tilt measured at the summit of Kīlauea during March 1-7, 2012, shows a series of U- and V-shaped DI events, with deflation indicated by downward tilt and inflation by upward tilt. Images from a thermal camera that overlooks the summit eruptive vent demonstrate how the lava level (noted by white dashed line), depicted by warmer colors, charges across tilt cycles. Tilt is

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Royal Gardens in Kīlauea's crosshairs again...
March 22, 2012

Royal Gardens in Kīlauea's crosshairs again

Lava flows creep through the Royal Gardens subdivision on February 24, 2012, slowly burying the few remaining forested kipuka.

Active pāhoehoe on the coastal plain of Kīlauea volcano, Hawai‘i....
March 8, 2012

Active pāhoehoe on the coastal plain of Kīlauea, Hawai‘i.

pāhoehoe flows were active on the coastal plain today, but extended only about 400 m (440 yards) out from the base of the pali. These flows have about 2.8 km (1.7 miles) more to travel to reach the ocean. Farther up the hill, on the steep lower portion of the pali, several active ‘A‘ā cascades are visible.

Mauna Loa looms behind HVO and Jaggar Museum...
March 6, 2012

Mauna Loa looms behind HVO and Jaggar Museum

The Hawaiian Volcano Observatory and Jaggar Museum, shown in this photo, sit atop the summit of Kīlauea Volcano. The snow-capped summit of Mauna Loa, nearly 10,000 feet higher than Kīlauea, looms in the background.

Mauna Loa looms behind HVO and Jaggar Museum...
March 6, 2012

Mauna Loa looms behind HVO and Jaggar Museum

The Hawaiian Volcano Observatory and Jaggar Museum, shown in this photo, sit atop the summit of Kīlauea Volcano. The snow-capped summit of Mauna Loa, nearly 10,000 feet higher than Kīlauea, looms in the background.

February 8, 2012

View of swiftly-moving lava entering the tube system, and active break

This Quicktime movie begins with a view of lava in Pu‘u ‘Ō‘ō made possible by a small collapse pit. The lava is swiftly moving towards the northeast, and this represents lava within Pu‘u ‘Ō‘ō crater that is entering the lava tube system which, in turn, feeds the active flow field. The movie continues with a flight along this active lava tube system, with the trace of the

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Volcano scientist presents two talks about Kīlauea's ongoing erupti...
February 6, 2012

Volcano scientist presents two talks about Kīlauea's ongoing eruption

This image of a dusty plume produced by rocks collapsing from the wall of the eruptive vent within Kīlauea Volcano's Halema‘uma‘u Crater was captured by a USGS time-lapse camera on December 21, 2011. Vigorous spattering on the lava lake deep within the vent created the orange glow visible at the base of the plume.

Erupting vents on Mauna Loa's northeast rift zone near Pu‘u ‘Ula‘ul...
February 6, 2012

Erupting vents on Mauna Loa's northERZ near Pu‘u ‘Ula‘ula (Red Hill...

Erupting vents on Mauna Loa's northeast rift zone near Pu‘u ‘Ula‘ula (Red Hill) on March 25, 1984, sent massive ‘A‘ā lava flows down the rift toward Kulani.

January 26, 2012

Video of spattering in Halema‘uma‘u lava lake

This Quicktime movie shows vigorous spattering along the south margin of the Halema‘uma‘u lava lake. Lava, upwelling in the northern portion of the lake (out of view), slowly migrates to this southern margin where it sinks back into the conduit.

Kīlauea East Rift Zone Eruption Map: December 27, 2011...
December 28, 2011

Kīlauea ERZ Eruption Map: Dec. 27, 2012

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) is shown in dark gray; Episodes 48c-49 (1986-1992) is pale yellow; Episodes 50-53 and 55 (1992-2007) is tan; Episode 54 (1997) is yellow; Episode 58 (2007-2011) is pale orange; the episode 59 Kamoamoa

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Kīlauea's Volcanic Gases and Their Environmental Impacts...
December 19, 2011

Kīlauea's Volcanic Gases and Their Environmental Impacts

Gas emissions from the crater of Pu‘u ‘Ō‘ō on Kīlauea's east rift zone (foreground) and the summit vent in Halema‘uma‘uCrater (background, just below the clouds) create volcanic pollution that affects the air quality of downwind communities. USGS photo by Tim Orr.