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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 — Mapping and sampling the submarine slopes of Hawai‘i a job for modern research tools

Volcano Watch — Mapping and sampling the submarine slopes of Hawai‘i a job for modern research tools

The major part of each Hawaiian volcano lies below sea level, which creates a logistical nightmare: How does one study the submarine slopes?

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Volcano Watch — Scientists explore Kīlauea's underwater east rift zone

Volcano Watch — Scientists explore Kīlauea's underwater east rift zone

Scientists know more about the history and inner dynamics of Kīlauea than they do about most other volcanoes in the world. Yet a major portion of the...

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Volcano Watch — Dirty research: flushing mud from inside Kīlauea

Volcano Watch — Dirty research: flushing mud from inside Kīlauea

A 1,262-m-deep (4,139-ft-deep) research hole was drilled in the southwest corner of Kīlauea's caldera in 1973. At the time, this was the deepest hole...

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Volcano Watch — Ongoing Subsidence at Kīlauea Volcano

Volcano Watch — Ongoing Subsidence at Kīlauea Volcano

Kīlauea Volcano's summit has been slowly subsiding since 1983, the year that the ongoing Pu`u O`o-Kupaianaha eruption started. This broad and gentle...

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Volcano Watch — Volcanoes and biology? Complex interactions battle to save our biological resources

Volcano Watch — Volcanoes and biology? Complex interactions battle to save our biological resources

With this article, "Volcano Watch" broadens its scope to include items of biological interest related to Hawai`i volcanoes. Once every two months, the...

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Volcano Watch — Lava flows create new ocean entry as old entry fades away

Volcano Watch — Lava flows create new ocean entry as old entry fades away

Rapid landscape changes take place during Kīlauea's east rift zone eruption. Visitors to the coastal plain six months ago could have watched lava...

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Volcano Watch — The Chain of Craters at Kīlauea

Volcano Watch — The Chain of Craters at Kīlauea

The Chain of Craters marks the location of Kīlauea's upper east rift zone. The chain reaches southeastward from the summit caldera and then gradually...

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Volcano Watch — Seismographic networks and locating earthquakes

Volcano Watch — Seismographic networks and locating earthquakes

You hear a low rumbling sound; the walls of your house shake a little; objects on the shelves skip around, maybe even fall off the shelf. Was that an...

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Volcano Watch — How high is Mauna Loa?

Volcano Watch — How high is Mauna Loa?

Groups of students of all ages frequently visit the U.S. Geological Survey's Hawaiian Volcano Observatory while they are on an excursion to Hawaii...

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Photo and Video Chronology - Kīlauea - August 19, 1998

Photo and Video Chronology - Kīlauea - August 19, 1998

Episode 55, Stable but Dynamic

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Volcano Watch — Bubble, bubble? Toil and trouble!

Volcano Watch — Bubble, bubble? Toil and trouble!

Geology is an inexact science, and sometimes studying volcanoes seems like a game of chance. This is particularly true for those who study the way...

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Volcano Watch — It's dirty work, but someone's got to do it

Volcano Watch — It's dirty work, but someone's got to do it

In 1790 a group of Hawaiian warriors in the Ka`u Desert was killed by an eruption of hot gas and flying rocks that originated from Kīlauea caldera...

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