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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 — The Layered Earth Turns 100 Years Old

Volcano Watch — The Layered Earth Turns 100 Years Old

On October 8, 1909, an earthquake struck southeast of Zagreb, Croatia. Prior to this event, a number of seismographs had been installed in the region...

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Volcano Watch — One Man's Soil Is Another Man's Ash, Especially Around Pāhala

Volcano Watch — One Man's Soil Is Another Man's Ash, Especially Around Pāhala

"Pahala Ash," named for the town of Pahala, refers to soil deposits along the southeast portion of the island of Hawai`i. Pahala Ash was described by...

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Volcano Watch — Kīlauea's Emissions and Their Effects: It's All about Location

Volcano Watch — Kīlauea's Emissions and Their Effects: It's All about Location

A common saying in the real estate business is that three things matter regarding property: "location, location, location." The same might be said...

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Volcano Watch — Hualālai is Third Most Active Volcano in Hawai`i

Volcano Watch — Hualālai is Third Most Active Volcano in Hawai`i

The West Hawai`i Today issue for September 11, 2009, contained a letter to the editor titled "Hualālai is a real and present threat." The writer's...

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Volcano Watch — Ancient Hawaiians: Plenty of Oars but No Ores

Volcano Watch — Ancient Hawaiians: Plenty of Oars but No Ores

Most accounts of Captain Cook's first arrival in Hawai`i describe the Hawaiians' fascination with metal objects.

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Volcano Watch — Mount St. Helens' Eruption of 2004-2008 Described in Newly Published USGS Book

Volcano Watch — Mount St. Helens' Eruption of 2004-2008 Described in Newly Published USGS Book

It is placid these late-summer days at Mount St. Helens, the mainland U.S. volcano that began in 2004, a sluggish, relentless eruption that lasted for...

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Volcano Watch — Putting Kīlauea's Current Activity in Perspective

Volcano Watch — Putting Kīlauea's Current Activity in Perspective

Dr. Thomas L. Wright, former Scientist-in-Charge of HVO, spent the last two weeks in Hawai`i exchanging ideas and information with HVO scientists.

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Volcano Watch — Alaska's Summer Field Season for Volcanologists is Quickly Coming to a Close

Volcano Watch — Alaska's Summer Field Season for Volcanologists is Quickly Coming to a Close

Summer is traditionally the best field season for volcanologists to conduct a variety of work on restless and active volcanoes, especially in remote...

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Volcano Watch — Simple Tools Measure Amount of Volcanic Ash from Halema`uma`u

Volcano Watch — Simple Tools Measure Amount of Volcanic Ash from Halema`uma`u

What do 10 plastic buckets, a 1.5-inch paint brush, a small funnel, two restaurant heat lamps, and a simple weighing scale have in common? These...

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Volcano Watch — HVO Gets a Brief Look at Seismology's Promising Future.

Volcano Watch — HVO Gets a Brief Look at Seismology's Promising Future.

Opportunities to meet and become better acquainted with new colleagues are important and valuable in all organizations.

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Volcano Watch — Kīlauea's Summer Break Pau for Now?

Volcano Watch — Kīlauea's Summer Break Pau for Now?

While baseball fans nationwide at this time of year think about "trades" in terms of swapping average for exceptional ball players, we here in Hawai`i...

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Volcano Watch — Scientists have mixed success with forecasting volcano hazards in Hawai`i

Volcano Watch — Scientists have mixed success with forecasting volcano hazards in Hawai`i

To most Hawai`i Island residents, the eruption of Kīlauea Volcano has been something that is happening "over there." Pele's domain might be an...

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