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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.

Filter Total Items: 1785
Volcano Watch — What is the fate of Fogo?

Volcano Watch — What is the fate of Fogo?

Fogo, the youngest and most active volcano in the Cape Verde Islands, lies at the western end of a short chain of volcanic islands off the west coast...

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Volcano Watch — Kīlauea is a moody volcano

Volcano Watch — Kīlauea is a moody volcano

Trekkers to the summit were used to seeing explosions, but nothing like this.

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Volcano Watch — HVO Looks Ahead While There's a Break(Out) in the Activity

Volcano Watch — HVO Looks Ahead While There's a Break(Out) in the Activity

U.S. Geological Survey scientists at the Hawaiian Volcano Observatory (HVO), scanning HVO's Kīlauea East Rift Zone webcam images, noted a new breakout...

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Volcano Watch — Coming up for air in lower Puna

Volcano Watch — Coming up for air in lower Puna

The past several weeks have been full of suspense and emotion for residents of the lower Puna District of the Island of Hawai‘i. Rather than being...

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Volcano Watch — How long will Kīlauea Volcano's June 27th flow last?

Volcano Watch — How long will Kīlauea Volcano's June 27th flow last?

With the June 27th lava flow entering Pāhoa this past week, the USGS Hawaiian Volcano Observatory (HVO) and Hawai‘i County Civil Defense have been...

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Volcano Watch — The June 27th lava flow slows, surges into Pāhoa, then slows again

Volcano Watch — The June 27th lava flow slows, surges into Pāhoa, then slows again

Just over a week ago Kīlauea Volcano's June 27th lava flow was barely moving forward, but then it surged into Pāhoa. With that in mind, the USGS...

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Volcano Watch — Pāhoehoe lava makes for fitful advance of the June 27th lava flow

Volcano Watch — Pāhoehoe lava makes for fitful advance of the June 27th lava flow

The June 27th lava flow, named for the date that it began erupting from Pu‘u ‘Ō‘ō on Kīlauea Volcano's East Rift Zone, continued to move toward Pāhoa...

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Volcano Watch — A mile-high offshore segment of Kahuku pali reveals clues about Mauna Loa

Volcano Watch — A mile-high offshore segment of Kahuku pali reveals clues about Mauna Loa

One of the more spectacular geologic features on the Island of Hawai‘i can easily be seen from Highway 11 near South Point. It is a cliff, informally...

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Volcano Watch — The current state of activity in Kīlauea Volcano's lower East Rift Zone

Volcano Watch — The current state of activity in Kīlauea Volcano's lower East Rift Zone

In web forums and at recent public meetings, USGS Hawaiian Volcano Observatory (HVO) scientists have been asked about conditions in Kīlauea Volcano's...

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Volcano Watch — Emergency preparedness in Hawaii encompasses multiple hazards

Volcano Watch — Emergency preparedness in Hawaii encompasses multiple hazards

First, it was Tropical Storm Iselle. Now, it's lava wending its way down the slope of Kīlauea toward housing subdivisions and essential infrastructure...

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Volcano Watch — Why do lava flows stop advancing?

Volcano Watch — Why do lava flows stop advancing?

Much scientific study has been done to determine what types of eruptions produce long lava flows. In the 1970s, a very simple idea seemed to guide...

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Volcano Watch — HVO and Hawai‘i County Civil Defense jointly track the June 27th lava flow

Volcano Watch — HVO and Hawai‘i County Civil Defense jointly track the June 27th lava flow

The USGS Hawaiian Volcano Observatory (HVO) and Hawai‘i County Civil Defense (HCCD) are working closely together to gather and share information about...

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