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Daily updates about ongoing eruptions, recent images and videos of summit and East Rift Zone volcanic activity, maps, and data about recent earthquakes in Hawaii are posted on the HVO website. 

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and colleagues.

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Volcano Watch — Eruption rate for July-August lava flows was high but may have diminished toward the previous long-term rate

Volcano Watch — Eruption rate for July-August lava flows was high but may have diminished toward the previous long-term rate

The ongoing eruption of Kīlauea has spewed forth nearly 58 million cubic meters (76 million cubic yards) of lava in the days between July 21 and...

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USGS HVO Press Release — Lava Bypasses July 21 Channel and Erupts from Channel Flank

USGS HVO Press Release — Lava Bypasses July 21 Channel and Erupts from Channel Flank

At approximately 6 am this morning, lava began erupting from the south flank of the perched channel nearly directly over fissure D, the original July...

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Photo and Video Chronology - Kīlauea - November 15, 2007

Photo and Video Chronology - Kīlauea - November 15, 2007

Episodic spattering in the Episode 58 lava channel.

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Volcano Watch — New geologist is a timely addition to HVO staff

Volcano Watch — New geologist is a timely addition to HVO staff

Alert readers of this column will know that the Hawaiian Volcano Observatory (HVO) has seen the addition of several new employees this year.

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Volcano Watch — Perched lava channel elevates the flows

Volcano Watch — Perched lava channel elevates the flows

Despite the potential hazards, the ongoing eruption from Kīlauea's east rift zone is a remarkable and fascinating sight.

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Volcano Watch — Changes in lava flows intensify questions to scientists

Volcano Watch — Changes in lava flows intensify questions to scientists

As soon as lava began flowing on the north side of Kīlauea's east rift zone from a new vent on July 21, questions arose among residents of the Puna...

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USGS HVO Press Release — Magnitude-4.0 Earthquake beneath the South Flank of Kīlauea Volcano

USGS HVO Press Release — Magnitude-4.0 Earthquake beneath the South Flank of Kīlauea Volcano

A magnitude-4.0 earthquake was located beneath the south flank of Kīlauea Volcano by the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO)...

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Volcano Watch — OK, you felt it, but did it move you?

Volcano Watch — OK, you felt it, but did it move you?

Every week Hawai`i residents feel earthquakes. Some weeks the U.S. Geological Survey's Hawaiian Volcano Observatory receives only a few reports, but...

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Volcano Watch — Glaciers on Mauna Kea? You crazy? In the middle of the Pacific? YES!

Volcano Watch — Glaciers on Mauna Kea? You crazy? In the middle of the Pacific? YES!

Mauna Kea, a dormant volcano in the post-shield stage, last erupted about 4,500 years ago. Its oldest exposed lavas are about 250,000 years old.

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Volcano Watch — At Kīlauea, it's always "Time to make the doughnuts"

Volcano Watch — At Kīlauea, it's always "Time to make the doughnuts"

Some years ago, a series of commercials for a popular doughnut shop was aired on television. In the scene, Fred the baker would leave his house early...

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Volcano Watch — How much lava is being erupted at the July 21 fissure?

Volcano Watch — How much lava is being erupted at the July 21 fissure?

This has been a popular question posed by scientist and citizen alike but is currently a difficult one to answer accurately. It is also one of the...

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Volcano Watch — Progress in the year following the Kiholo Bay earthquake

Volcano Watch — Progress in the year following the Kiholo Bay earthquake

This coming October 15 will mark one year since last October's damaging earthquakes that rocked Hawai`i County. To briefly recall them, at 7:07 AM on...

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