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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 — In Every Volcanic Paradise, a Little Vog Must Fall

Volcano Watch — In Every Volcanic Paradise, a Little Vog Must Fall

Locally, the term "vog" has become a household word, with a rash of media articles and even a respectable Wikipedia entry online. After 25 years of...

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Volcano Watch — Can we control volcanic hazards?

Volcano Watch — Can we control volcanic hazards?

Humans are an inventive lot, and when faced with adversity, we look for creative ways to fix the problem. Any natural disaster can be separated into...

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Volcano Watch — Halema`uma`u appears laid back but . . .

Volcano Watch — Halema`uma`u appears laid back but . . .

In contrast to the spectacular incandescent explosions and springtime spatter showers at the Halema`uma`u Overlook in March and April, the eruptive...

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Volcano Watch — Volcanologists Work the Night Shift Watching Halema`uma`u's New Vent

Volcano Watch — Volcanologists Work the Night Shift Watching Halema`uma`u's New Vent

Have you ever wondered what it's like to work the night shift at a volcano observatory? Probably not, but for volcanologists, sitting in the glass...

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Volcano Watch — Spectacular Show Underway at Lava Ocean Entry

Volcano Watch — Spectacular Show Underway at Lava Ocean Entry

Kīlauea is putting on a tremendous display near Kalapana, where lava is entering the ocean after traveling through a tube system that originates high...

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Volcano Watch — An Exciting End to June at Kīlauea

Volcano Watch — An Exciting End to June at Kīlauea

One of the most surprising aspects of the current summit eruption at Kīlauea Volcano, which started in March of this year, is that there has been...

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USGS HVO Press Release — HVO Geophysicists Doing Routine Check of Haleakalā Volcano

USGS HVO Press Release — HVO Geophysicists Doing Routine Check of Haleakalā Volcano

Hawaiian Volcano Observatory geophysicists are conducting a routine GPS survey of Haleakalā Volcano on the island of Maui this week as part of the U.S...

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Volcano Watch — Surprise Eruption in Chile Sparks Interest in National Volcano Early Warning System

Volcano Watch — Surprise Eruption in Chile Sparks Interest in National Volcano Early Warning System

During the evening of April 30, in a distant volcanic region in the southern Andes about 1050 km (650 miles) south of Santiago, Chile, strong ground...

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Photo and Video Chronology - Mauna Loa - July 2, 2008

Photo and Video Chronology - Mauna Loa - July 2, 2008

Photos of the summit caldera of Mauna Loa.

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Volcano Watch — HVO Hot Shots See the Heat at Kīlauea

Volcano Watch — HVO Hot Shots See the Heat at Kīlauea

If you keep an eye on the Kīlauea update images posted on the HVO website, you may have noticed over the last few months that we have occasionally...

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Volcano Watch — And You Thought You Were Standing Still

Volcano Watch — And You Thought You Were Standing Still

People who live in areas with high earthquake activity are familiar with the sensation of the earth shaking beneath their feet during an earthquake...

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Volcano Watch — The Puzzling Plume

Volcano Watch — The Puzzling Plume

The new Halema`uma`u Overlook vent is now only three months old, and the accompanying plume is relatively small in terms of previous explosive...

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