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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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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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Volcano Watch — What to worry about in Kīlauea volcanic emissions?

Volcano Watch — What to worry about in Kīlauea volcanic emissions?

Even with the focus on sulfur dioxide gas (SO2) and vog, inquisitive individuals have asked about other things emitted by Kīlauea volcano. Here's the...

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Volcano Watch — The Rooftop View at Pele's House is Magnificent

Volcano Watch — The Rooftop View at Pele's House is Magnificent

Since March 12, when a billowing cloud of fume erupted from the east wall of Halema`uma`u, thousands of Hawai`i residents and visitors have gazed out...

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Volcano Watch — Murky Crystal Ball Suggests Potential for Voggy Future at Kīlauea

Volcano Watch — Murky Crystal Ball Suggests Potential for Voggy Future at Kīlauea

As the vog wears on us, it might be a good time to get out the crystal ball and try to guess what might happen in the next months, years, and even...

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Volcano Watch — Pele's Cooking More Than Vog -- "Precious" Jewels Also Stewing in Her Cauldron

Volcano Watch — Pele's Cooking More Than Vog -- "Precious" Jewels Also Stewing in Her Cauldron

After the series of explosions at Halema`uma`u Crater, the overlook area appeared to be a stark, boulder-strewn field completely devoid of life.

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Volcano Watch — Ashes, Ashes, All Fall Down

Volcano Watch — Ashes, Ashes, All Fall Down

Recent activity at Kīlauea's summit caused HVO scientists to hit the books, because such behavior hasn't been previously documented.

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Volcano Watch — Who owns new coastal lands created by lava flows?

Volcano Watch — Who owns new coastal lands created by lava flows?

Many visitors to the HVO website have asked about the white structures visible in the photos of lava flowing across the coastal plain and into the...

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Volcano Watch — Professor Jaggar Would Have Loved This View

Volcano Watch — Professor Jaggar Would Have Loved This View

Unusual, tantalizing, mesmerizing. Adrenaline-spiking, mid-life crisis(?). These words have been used in our recent Volcano Watch reports as we...

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Volcano Watch — Unfamiliar Tricks from our Familiar Volcano

Volcano Watch — Unfamiliar Tricks from our Familiar Volcano

A human lifespan is but a blink of an eye compared to Kīlauea's 300,000-600,000 years of existence.

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