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Volcano Watch — Reduced sulfur dioxide emissions from Kīlauea's east rift have some fans cheering

Volcano Watch — Reduced sulfur dioxide emissions from Kīlauea's east rift have some fans cheering

Like the delicate interplay between the Spanish and Dutch soccer players in the final game of the World Cup, competing forces shape our island...

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Photo and Video Chronology - Kīlauea - July 14, 2010

Photo and Video Chronology - Kīlauea - July 14, 2010

Thermal images showing the active flows coming down the pali and at Halema`uma`u

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Volcano Watch — Halema‘uma‘u's fickle lava pond has been unusually steady recently

Volcano Watch — Halema‘uma‘u's fickle lava pond has been unusually steady recently

If you have visited the HVO Web site recently, you may have noticed that the Halema‘uma‘u Overlook Webcam has shown exceptional views of the lava pond...

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Photo and Video Chronology - Kīlauea - July 8, 2010

Photo and Video Chronology - Kīlauea - July 8, 2010

Aerial photo looking directly into a skylight

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Volcano Watch — Petrologic Monitoring of Kīlauea Volcano: An update for "Rockhounds"

Volcano Watch — Petrologic Monitoring of Kīlauea Volcano: An update for "Rockhounds"

Petrology is literally the "study of rocks," and looking carefully at the rocks coming out of a volcano is necessary in order to understand what's...

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Volcano Watch — Kīlauea Volcano has been erupting for a long, long time

Volcano Watch — Kīlauea Volcano has been erupting for a long, long time

On May 21, 2010, Kīlauea Volcano's ongoing eruption reached a milestone:
10,000 days!

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Volcano Watch — Over the Edge, or the Webcam Takes a Plunge

Volcano Watch — Over the Edge, or the Webcam Takes a Plunge

At HVO's Monday meeting, geologist Tim Orr updated the staff on current eruption conditions at Kīlauea's summit, east rift zone vents and flow field.

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Volcano Watch — Is Kīlauea east rift eruption running out of gas?

Volcano Watch — Is Kīlauea east rift eruption running out of gas?

Regular visitors to HVO's daily update Web page might notice what seems like a minor change in one of Kīlauea two ongoing eruptions. While sulfur...

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Volcano Watch — What caused Kīlauea to lose its top in about 1500?

Volcano Watch — What caused Kīlauea to lose its top in about 1500?

All of us lose something as we age, and, about 500 years ago, Kīlauea lost its top. The summit collapsed to form a precipitous hole, known as a...

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Volcano Watch — Earth has just a handful of long-lived lava lakes

Volcano Watch — Earth has just a handful of long-lived lava lakes

What volcanic locale do the following characteristics describe?

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Volcano Watch — Kīlauea summit eruption turns two

Volcano Watch — Kīlauea summit eruption turns two

This past Friday, March 19, marked the second anniversary of Kīlauea ongoing summit eruption in Halema`uma`u Crater. After 25 years without eruptive...

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USGS HVO Press Release — Magnitude-4.5 Earthquake beneath Mauna Kea, Hawai‘i

USGS HVO Press Release — Magnitude-4.5 Earthquake beneath Mauna Kea, Hawai‘i

A magnitude-4.5 earthquake was located on the northeast flank of Mauna Kea by the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) on...

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