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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 — Sounds we can't hear teach us about lava lakes

Volcano Watch — Sounds we can't hear teach us about lava lakes

If you visit Hawai‘i Volcanoes National Park's Jaggar Museum Overlook when the wind is calm, you might be able to hear the sounds of gas bubbles...

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Volcano Watch — Volcano Watch archive is now complete and inspires a new column

Volcano Watch — Volcano Watch archive is now complete and inspires a new column

In November 2017, "Volcano Watch" entered its 27th year of publication. The long history of this column is, in large part, thanks to the U.S...

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Volcano Watch — Why do some earthquakes have negative depths?

Volcano Watch — Why do some earthquakes have negative depths?

Astute visitors to the USGS Hawaiian Volcano Observatory (HVO) website may have noticed that some recent earthquakes have negative depths. This does...

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Volcano Watch — Keeping informed about Hawaiian volcanoes is the first step to preparedness

Volcano Watch — Keeping informed about Hawaiian volcanoes is the first step to preparedness

With recent attention focused on the need to be prepared for all hazards, this week's Volcano Watch offers ways to stay informed about Hawaiian...

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Volcano Watch — What makes the lava lake within Halema‘uma‘u rise and fall?

Volcano Watch — What makes the lava lake within Halema‘uma‘u rise and fall?

About a year ago, the lava lake within Halema‘uma‘u at Kīlauea Volcano's summit was high enough that spattering on the lake surface was commonly...

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Volcano Watch — The Hawaiian Volcano Observatory looks forward to 2018

Volcano Watch — The Hawaiian Volcano Observatory looks forward to 2018

With the Wolf Moon illuminating Kīlauea Caldera from above and the Halema‘uma‘u lava lake glowing below, the USGS Hawaiian Volcano Observatory (HVO)...

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Volcano Watch — Happy birthday Pu‘u ‘Ō‘ō! A look back at what happened in 2017

Volcano Watch — Happy birthday Pu‘u ‘Ō‘ō! A look back at what happened in 2017

On January 3, 2018, Pu‘u ‘Ō‘ō on Kīlauea Volcano's East Rift Zone reaches its 35th birthday. 

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Volcano Watch — Evolving tube network blocked and diverted lava from the Kamokuna delta

Volcano Watch — Evolving tube network blocked and diverted lava from the Kamokuna delta

Lava erupting from the active vent on the east flank of Pu‘u ‘Ō‘ō has not entered the ocean or reached the Kamokuna lava delta during the past month...

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Volcano Watch — Progress can be slow but adds up

Volcano Watch — Progress can be slow but adds up

Where do we stand today with big-picture knowledge of Kīlauea and Mauna Loa acquired in the past few decades?

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Volcano Watch — January is Volcano Awareness Month on the Island of Hawai‘i

Volcano Watch — January is Volcano Awareness Month on the Island of Hawai‘i

January 2018 is Hawai‘i Island's 9th annual Volcano Awareness Month. 

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Volcano Watch — Did aerial bombing stop the 1935 Mauna Loa lava flow?

Volcano Watch — Did aerial bombing stop the 1935 Mauna Loa lava flow?

A widely-held belief is that Thomas Jaggar, founder of the Hawaiian Volcano Observatory, was able to stop a Mauna Loa lava flow in 1935. But is it...

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Volcano Watch — What do we call new land at Kīlauea Volcano's ocean entries?

Volcano Watch — What do we call new land at Kīlauea Volcano's ocean entries?

If you follow Kīlauea Volcano's ongoing East Rift Zone eruption, you are likely aware that when lava enters the ocean, it often forms new land. But...

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