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An aerial view of the 1940 cinder-and-spatter cone on the floor of ...
May 23, 2011

An the 1940 cinder-and-spatter cone on the floor of Mauna Loa's sum...

An aerial view of the 1940 cinder-and-spatter cone on the floor of Mauna Loa's summit caldera as seen from the southeast. The west wall of the caldera (background) is about 170 m (560 feet) high. Most of the caldera floor around the cone is covered by lava flows erupted in 1984.

Image: An Endangered Puaiohi (Small Mountain Thrush) in Hawaii
May 19, 2011

An Endangered Puaiohi (Small Mountain Thrush) in Hawaii

Many species of Hawaiian honeycreepers have persisted into the 20th century because high elevation rain forests on the islands of Kaua’i, Maui, and Hawai'i are cool enough to limit transmission of introduced avian malaria (Plasmodium relictum). Malaria transmission is tied closely to the effects of temperature on development of malarial parasites within their

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A petrologist explains Kīlauea's eruptive condition...
May 13, 2011

A petrologist explains Kīlauea's eruptive condition

The western Kamoamoa fountain-fed lava flows advanced over 1997 lavas (dark flow in foreground) with 1965 and 1968 lavas buried by Pu‘u ‘Ō‘ō cinder to the far left. Pu‘u ‘Ō‘ō is in the distant background.

March 14, 2011

Fissure Propagating

Video clip shot in front of the propagating fissure

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March 14, 2011

Lava Spatter

Video of spattering near the front of the propagating 

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March 14, 2011

Vent Collapse at Rim of Halema`uma`u

This video, also compiled from the Webcam on the rim of Halema‘uma‘u, shows the north rim of the vent collapsing.

March 14, 2011

Rim Collapsing into Lava Lake

This clip, captured by a video camera on the rim of Halema‘uma‘u to the southwest of the vent, shows a small slice of the western rim of the vent collapsing into the 

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March 14, 2011

Lava Pouring From Fissure

Video showing lava pouring from the 

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March 14, 2011

Lava Spattering Near Pu`u `Ō`ō

Video showing spattering from the most persistent vent of the day just west of the base of Pu‘u ‘Ō‘ō near the northeastern end of the 

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March 14, 2011

Fissure Eruption Between Pu‘u ‘Ō‘ō and Nāpau Crater

Video clip shot from the air looking SW at the 

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Geologist samples layers formed by explosive eruptions at Kīlauea V...
March 11, 2011

Geologist samples layers formed by explosive eruptions at Kīlauea, ...

These tephra deposits are from the Kulanaokuaiki Tephra erupted from Kīlauea Volcano about 200 to 1000 C.E. The base of a lava flow overlying the tephra is just above the person's hand. This site is located near the base of Kīlauea's summit crater wall, directly below the USGS Hawaiian Volcano Observatory and NPS Jaggar Museum.

Eruption of low lava fountains from a fissure at Kilauea Volcano, Hawaii.
March 11, 2011

Fissure eruption of lava fountains, Kīlauea Volcano’s East Rift Zone

Fissure eruption of low lava fountains from Kīlauea Volcano’s East Rift Zone in 2007, Island of Hawaiʻi.