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Date published: March 31, 2011

Volcano Watch — Scientific collaborations aid study of Kamoamoa fissure eruption

In early March, a new phase of Kīlauea's east rift zone eruption occurred as lava erupted in the Kamoamoa area, between Nāpau Crater and Pu‘u ‘Ō‘ō. The eruption lasted for five days, ending at about 10:30 p.m. on Wednesday, March 10. After a pause of about 17 days, the east rift eruption resumed on March 26 when lava began to refill Pu‘u ‘Ō‘ō.

Date published: March 28, 2011

Photo and Video Chronology - Kīlauea - March 28, 2011

Lava reappeared in Pu‘u ‘Ō‘ō crater, covering the floor with a small lava lake.

Date published: March 26, 2011

USGS HVO Press Release — Lava Returns to Kīlauea Volcano's east rift zone

HAWAI‘I ISLAND, Hawai‘i — Following an almost 17-day pause in eruptive activity, lava is once again visible on Kīlauea Volcano's east rift zone according to the U.S. Geological Survey's Hawaiian Volcano Observatory.

Date published: March 24, 2011

Volcano Watch — The first day of the Kamoamoa fissure eruption from one scientist's perspective

HVO scientists were shaken out of their weekend routine when, at 1:42 p.m., on Saturday, March 5, 2011, the seismic tremor alarms started and, at 2:16 p.m., the floor of Pu‘u ‘Ō‘ō crater began to collapse.

Date published: March 17, 2011

Volcano Watch — Why didn't draining of lava from Halema‘uma‘u cause explosions?

The rapid draining of lava from the pit in Halema‘uma‘u on March 5 occasioned worst-case concerns of explosive eruptions at Kīlauea's summit. Thank goodness these concerns didn't materialize. Still, it is worth describing how these seemingly disparate processes could be related and why the explosive scenario didn't become a reality.

Date published: March 14, 2011

Photo and Video Chronology - Kīlauea - March 14, 2011

Measuring the thickness of an ‘a‘ā flow produced by the Kamoamoa fissure eruption.

Date published: March 11, 2011

USGS HVO Press Release — Magnitude-4.6 Earthquake on the South Flank of Kīlauea Volcano

HAWAI‘I ISLAND, Hawai‘i — The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.6 earthquake located beneath Kīlauea Volcano's south flank on Thursday, March 10, at 10:58 p.m. HST. This earthquake was centered about 2 km (1 mi) southwest of Kalapana and 44 km (28 mi) south-southeast of Hilo, at a depth of 9.3 km (5.8 mi).

Date published: March 10, 2011

Photo and Video Chronology - Kīlauea - March 10, 2011

The east rift zone eruption is currently in a hiatus. Photo of ground cracks between the east and west Kamoamoa fissure segments. Quicktime movie showing March 5th through 7th draining of the Halema‘uma‘u lava lake.

Date published: March 10, 2011

Volcano Watch — Kīlauea Volcano's March 2011 fissure eruption viewed by millions around the world

On Saturday afternoon, March 5, 2011, automatic alarms signaled increased seismic activity at Kīlauea and tiltmeter records showed rapid deflation of the east rift zone. By 2:21 p.m., the floor of the Pu‘u ‘Ō‘ō crater had begun to collapse.

Date published: March 9, 2011

Photo and Video Chronology - Kīlauea - March 9, 2011

Thermal images showing active fountains and channelized ‘a‘ā flow. The western vent complex of Kamoamoa continues to erupt.

Date published: March 8, 2011

Photo and Video Chronology - Kīlauea - March 8, 2011

Photos showing lava fountains from the northeastern vent of the Kamoamoa eruption, a piece of spatter ejected on March 7, 2011, and a thermal view into the Halema‘uma‘u vent.

Date published: March 7, 2011

Photo and Video Chronology - Kīlauea - March 7, 2011

Video showing low fountaining from the dominant vent, adjacent to Nāpau Crater. Video showing the collapse of the Pu‘u ‘Ō‘ō crater floor on March 5. Photos showing a broad view of the Kamoamoa fissures between Nāpau Crater and Pu‘u ‘Ō‘ō, and a collapse from the upper portion of the Halema‘uma‘u vent cavity that produced a robust brown plume.