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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 — We can prepare for earthquakes, but we can't predict them

Volcano Watch — We can prepare for earthquakes, but we can't predict them

In the last six weeks, Hawai`i residents have been shaken by two major earthquakes and numerous aftershocks.

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Volcano Watch — Foreshocks, mainshocks, and aftershocks - oh, my!

Volcano Watch — Foreshocks, mainshocks, and aftershocks - oh, my!

Many of us in Hawai`i received a rude awakening on October 15, 2006, as the first of two earthquakes struck near Kiholo Bay on the west side of the...

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Volcano Watch — New Tongan island exemplifies potentially explosive shallow marine volcanism

Volcano Watch — New Tongan island exemplifies potentially explosive shallow marine volcanism

A new Pacific island breached the ocean surface in August 2006, thanks to the eruption of the Home Reef volcano in the Tonga island chain. Even before...

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Volcano Watch — HVO debuts time-lapse movie Web page

Volcano Watch — HVO debuts time-lapse movie Web page

Time-lapse cameras have long been used to monitor volcanic eruptions, including the current eruption at Pu`u `O`o.

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Volcano Watch — Big Island is no stranger to damaging quakes

Volcano Watch — Big Island is no stranger to damaging quakes

Prior to the magnitude-6.7 Kiholo Bay earthquake in October, 17 years had passed since we were last rattled by a magnitude-6 or greater earthquake...

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Volcano Watch — Volunteerism alive and well at Hawaiian Volcano Observatory

Volcano Watch — Volunteerism alive and well at Hawaiian Volcano Observatory

For many students and scientists in the United States and abroad looking to gain experience in the physical sciences or wanting to take a break...

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Volcano Watch — Expert on volcanic gases exsolves from USGS

Volcano Watch — Expert on volcanic gases exsolves from USGS

Hawai`i is considered one of the best places on Earth to study gas release through active volcanism, and the process of gas release is a key to...

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Volcano Watch — What does the Hawaiian Volcano Observatory do during an earthquake?

Volcano Watch — What does the Hawaiian Volcano Observatory do during an earthquake?

Several different processes produce earthquakes in Hawai`i. The Hawaiian Volcano Observatory has a different role to play in each type and is one of...

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Volcano Watch — Devil's Throat has evolved into a shadow of its former self

Volcano Watch — Devil's Throat has evolved into a shadow of its former self

What's in a name? Juliet might have told Romeo that "a rose by any other word would smell as sweet," but if the rose were called a stink flower, fewer...

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Volcano Watch — Using Google Earth to determine Lava Flow Hazard Zones for Hawai`i County

Volcano Watch — Using Google Earth to determine Lava Flow Hazard Zones for Hawai`i County

Many of the questions asked of HVO staff members are about eruptions of Hawaiian volcanoes or basic Hawaiian geology. We also get lots of questions...

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Volcano Watch — Remembering Kent Warshauer, Storyteller

Volcano Watch — Remembering Kent Warshauer, Storyteller

On August 25, 2006, Kent Warshauer, author of the popular Hawaii Tribune-Herald column "The Riddle of the Relic," passed away at the age of 56.

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Volcano Watch — HVO maintains a careful watch on Hualālai and Haleakalā

Volcano Watch — HVO maintains a careful watch on Hualālai and Haleakalā

Of the five most active volcanoes in the Hawaiian Islands, Mauna Loa and Kīlauea garner the most attention, and justifiably so.

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