Photo and Video Chronology - Kīlauea - August 3, 2011

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Lava broke out from a vent on the west flank of Pu‘u ‘Ō‘ō cone. Rubble after collapse of Pu‘u ‘Ō‘ō crater floor and perched lava lake.

 

Lava broke out from a vent on the west flank of Pu‘u ‘Ō‘ō cone

Lava broke out from a vent on the west flank of Pu‘u ‘Ō‘ō cone...

Around 2:20 p.m., HST, on August 3, lava broke out from a vent (center) low on the west flank of the Pu‘u ‘Ō‘ō cone. Lava erupting from the flank vent is entirely within Hawai‘i Volcanoes National Park, and pose no hazard to residents.

(Public domain.)

Vents on the west flank of Pu‘u ‘Ō‘ō erupt—once again...

Lava flowing from vents on the west flank of Pu‘u ‘Ō‘ō formed two branches. A weak north arm advanced northward into forested kipuka (upper right). A higher-volume south arm quickly advanced down Kīlauea's south flank along the edge of flows erupted in 2002-2004 (upper left). Both flows are entirely within Hawai‘i Volcanoes National Park, and pose no hazard to residents. The Pu‘u ‘Ō‘ō crater is shown in the foreground.

(Public domain.)

 

Rubble after collapse of Pu‘u ‘Ō‘ō crater floor and perched lava lake

Rubble after collapse of Pu‘u ‘Ō‘ō crater floor and perched lava la...

At 2:02 p.m., HST, on August 3, the floor of Pu‘u ‘Ō‘ō crater, which had risen significantly over the past month, forming a dome beneath the perched lava lake, started to subside. By 3:15 p.m., the crater floor and perched lava lake began to collapse. Within a couple of hours, the lava lake was no longer visible, and the crater floor was covered in rubble.

(Public domain.)