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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 — Eventful Week at Kīlauea's Summit Culminates in Small Explosion at Halema`uma`u

Volcano Watch — Eventful Week at Kīlauea's Summit Culminates in Small Explosion at Halema`uma`u

It was a busy week atop our favorite volcano as Halema`uma`u continued to emit a towering white plume of gas and ash that was visible for miles around...

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USGS HVO Press Release — Halema‘uma‘u Vent Explodes a Second Time

USGS HVO Press Release — Halema‘uma‘u Vent Explodes a Second Time

A second explosion from the new vent in Halema‘uma‘u Crater occurred at 11:08 p.m., HST, on April 9, 2008. The explosion was smaller in magnitude than...

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Volcano Watch — Is Pele teasing us, revealing yet another facet of her personality?

Volcano Watch — Is Pele teasing us, revealing yet another facet of her personality?

Hundreds of visitors are driving to Kalapana each day to see the ocean entries of Kīlauea's east-rift lava flows. As these visitors watch the flows...

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Photo and Video Chronology - Kīlauea - March 28, 2008

Photo and Video Chronology - Kīlauea - March 28, 2008

Halema‘uma‘u plume captures the rainbow.

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Photo and Video Chronology - Kīlauea - March 27, 2008

Photo and Video Chronology - Kīlauea - March 27, 2008

Plume turns from bright white to reddish-brown.

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Volcano Watch — A New Ash Plume Rises from Kīlauea's Summit

Volcano Watch — A New Ash Plume Rises from Kīlauea's Summit

Last week's "Volcano Watch" detailed the development of the new gas vent - and small explosive eruption - on the south wall of Halema`uma`u Crater.

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USGS HVO Press Release — Halema‘uma‘u Gas Plume Becomes Ash-laden

USGS HVO Press Release — Halema‘uma‘u Gas Plume Becomes Ash-laden

There is now continuous emission of ash from the new gas vent in Halema‘uma‘u Crater, turning the formerly white cloud of fume a dusty-brown color.

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Volcano Watch — Something Had to Change After 25 Years

Volcano Watch — Something Had to Change After 25 Years

2008 will be known as the year that Kīlauea Volcano had a mid-life crisis. After 25 years of almost continuous, effusive eruption from its east rift...

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USGS HVO Press Release — Explosive Eruption in Halema‘uma‘u Crater, Kīlauea Volcano, Is First Since 1924

USGS HVO Press Release — Explosive Eruption in Halema‘uma‘u Crater, Kīlauea Volcano, Is First Since 1924

At 2:58 a.m. HST on Wednesday, March 19, 2008, a small explosion occurred at Halema‘uma‘u Crater at the summit of Kīlauea Volcano in Hawai‘i Volcanoes...

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USGS HVO Press Release — New Gas Vent in Halema‘uma‘u Crater Doubles Sulfur Dioxide Emission Rates

USGS HVO Press Release — New Gas Vent in Halema‘uma‘u Crater Doubles Sulfur Dioxide Emission Rates

A prominent new gas vent broke through the lower east wall of Halema‘uma‘u this week, doubling the already elevated level of sulfur dioxide gas being...

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Volcano Watch — Pele Gives Plenty of Heat to Namakaokaha`i

Volcano Watch — Pele Gives Plenty of Heat to Namakaokaha`i

Last week was a family reunion of sorts, as Pele met her sister, Namakaokaha`i, when lava from Kīlauea Volcano entered the ocean for the first time...

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Volcano Watch — Kīlauea Following One of Several Eruption Scenarios

Volcano Watch — Kīlauea Following One of Several Eruption Scenarios


Now that lava flows have reached the ocean below Royal Gardens subdivision, the concern 7 months ago of lava pouring northeast from a new vent toward...

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