http://gallery.usgs.gov/images/logos/usgs_only.jpg http://gallery.usgs.gov/ en-us OC_Web@usgs.gov (Office of Communications Web Group) http://gallery.usgs.gov/images/USGS.gif http://gallery.usgs.gov/ http://gallery.usgs.gov/photos/03_11_2013_hmd5Gsr11A_03_11_2013_0 Kīlauea Volcano's summit vent within Halema‘uma‘u Crater was about 115 feet in diameter in April 2008, a month after it opened. 

]]> http://gallery.usgs.gov/photos/03_11_2013_hmd5Gsr11A_03_11_2013_1 Kīlauea Volcano's summit vent within Halema‘uma‘u Crater was more than 500 feet across in March 2013, five years after it opened.

]]> http://gallery.usgs.gov/photos/03_11_2013_hmd5Gsr11A_03_11_2013_2 Kīlauea Volcano's summit vent "then and now."  In April 2008 (top image), a month after it opened, the vent within Halema‘uma‘u Crater was about 115 feet in diameter.  As of March 2013 (bottom image), it is more than 500 feet across.  

]]> http://gallery.usgs.gov/photos/01_03_2012_j51Qiu6HGb_01_03_2012_0 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.   

 

]]> http://gallery.usgs.gov/photos/12_29_2011_kOFr3VUhh0_12_29_2011_0 A new fissure eruption in September 2011 on the east flank of Pu‘u ‘Ō‘ō on Kīlauea Volcano's east rift zone reminds us of the need to be aware of our ever-changing volcanic environment on Hawai‘i Island. The fissure—the source of the lava flow—is shown in this image. Pu‘u ‘Ō‘ō cone and crater are in the background. Aerial view is to the southwest.

]]> http://gallery.usgs.gov/photos/12_28_2011_ydt2WKj77Q_12_28_2011_0 This large rock at the Kīlauea Overlook in Hawai‘i Volcanoes National Park was ejected ballistically in 1790, or soon thereafter, from Kilauea Volcano's summit caldera when it was more than 600 meters (2000 feet) deep.

]]> http://gallery.usgs.gov/photos/09_21_2011_pTKw40Ymm2_09_21_2011_0 The USGS Hawaiian Volcano Observatory is perched on the rim of Kilauea Volcano's summit caldera (next to the Thomas A. Jaggar Museum in Hawai`i Volcanoes National Park), providing a spectacular view of the active vent in Halema‘uma‘u Crater.

]]> http://gallery.usgs.gov/photos/07_06_2011_mQHt3WVjj1_07_06_2011_0 A channelized flow was being erupted today from the vent on the west side of the floor of Pu'u 'O 'o.

]]> http://gallery.usgs.gov/photos/07_06_2011_mQHt3WVjj1_07_06_2011_1 Following several collapses and small explosive events that deposited spatter on the floor of Halema'uma'u crater around noon, the lava surface in Halema'uma'u was roiling and agitated for the remainder of the afternoon, with numerous points of upwelling and spattering.

]]> http://gallery.usgs.gov/photos/07_06_2011_mQHt3WVjj1_07_06_2011_2 A close-up of the active lava surface in Halema'uma'u.

]]> http://gallery.usgs.gov/photos/07_06_2011_mQHt3WVjj1_07_06_2011_3 Another large chunk of the rim collapsed into the Halema'uma'u lava lake.

]]> http://gallery.usgs.gov/photos/07_06_2011_mQHt3WVjj1_07_06_2011_4 Just moments after the last photograph, the collapse produced a thick brown plume, but did not appear to trigger an explosive event in this case.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_0 Ash cloud rising from Pu'u 'O 'o as crater floor collapses due to magma withdrawal. Incandescent rubble can be seen crumbling and rolling down the scarp. The east rim of Pu'u 'O 'o is in the foreground.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_1 Incandescent rubble rolling and sliding down the scarp on the edge of the collapsing crater in Pu'u 'O 'o. A remnant of the pre-collapse crater floor can be seen in the background below the crater's south wall. The east rim of Pu'u 'O 'o is in the foreground.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_2 New fissure eruption SW of Pu'u 'O 'o between Pu'u 'O 'o and Napau crater. Spatter is reaching 15-20m into the air, above the trees. Pu'u 'O 'o in the background.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_3 New fissure eruption SW of Pu'u 'O 'o between Pu'u 'O 'o and Napau crater. Spatter is reaching 15-20m into the air, above the trees.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_4 View to the SW at the new fissure eruption between Pu'u 'O 'o and Napau. Cracks in the foreground could be seen opening as photo was being taken.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_5 Close-up of recently opened fissure segment. Spatter reaching about 5m into the air.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_6 View looking at the NE end of the actively propagating fissure. Lava is just breaking the surface in foreground crack.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_7 Close-up of just-opened fissure segment at NE tip of propagating fissure. Spatter reaching 5m into the air.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_8 Close-up of just-opened fissure segment at NE tip of propagating fissure. Spatter reaching 5m into the air. Lava just breaking the ground surface to the left.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_9 Close-up of spattering fissure. Lava reaching 10m into the air.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_10 View looking along recently opened fissure segment crossing tephra flats SW of Pu'u 'O 'o, which is in the background.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_11 View along fissure looking NE toward Pu'u 'O 'o shrouded in clouds in the background. Fissure segment in forest has shut down.

]]> http://gallery.usgs.gov/photos/07_06_2011_w0Rev22ut5_07_06_2011_12 View toward the SW of fissure eruption. Fissure segment in forest has shut down. Compare to earlier photos before fissure opened up in tephra.

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