Volcano Watch

There's a new volcanology book available from a Hawai‘i-based volcanologist, the first in almost 40 years.

Like other volcano observatories, HVO devotes most of its resources to volcano monitoring, using time-tested methods that have been found to deliver...

Anyone looking at a map of the Pacific cannot help but be astounded by the feat of the first Polynesian navigators to these isolated islands of Hawai...

It may surprise some readers that the Pu‘u ‘Ō‘ō eruption, now halfway through its 28th year of almost continuous activity, is not the longest-running...

Last week, Ken Honma bid farewell to friends and colleagues at the Hawaiian Volcano Observatory (HVO) as he retired from a U.S. Geological Survey...

Most readers will see the headline and think it refers to events in Kalapana this past week. The title is actually from a back page story in the...

The bits of dust kicked up by last Sunday's magnitude-3.6 earthquake south of O‘ahu have settled.

Like the delicate interplay between the Spanish and Dutch soccer players in the final game of the World Cup, competing forces shape our island...

If you have visited the HVO Web site recently, you may have noticed that the Halema‘uma‘u Overlook Webcam has shown exceptional views of the lava pond...

Shortly before midnight on July 5, 1975, a hiker sleeping in Pu‘u‘Ula‘ula (Red Hill) Cabin on the northeast flank of Mauna Loa awoke and saw a faint...

On the Island of Hawai‘i, the only time people think of volcanoes and asphalt together is when an active lava flow crosses the road (cue "Why did the...

Thanks to relatively recent advances in technology, many portable digital devices now have accelerometers embedded in them.

Volcanic hazards come in many forms. The most common hazards for Hawai`i include earthquakes, lava flows, and wide-ranging vog. What is the definition...

Molten lava flows downhill. This simple fact has spurred many residents on the Island of Hawai‘i, where Kīlauea Volcano has been erupting for more...

Petrology is literally the "study of rocks," and looking carefully at the rocks coming out of a volcano is necessary in order to understand what's...

On May 21, 2010, Kīlauea Volcano's ongoing eruption reached a milestone:
10,000 days!

At HVO's Monday meeting, geologist Tim Orr updated the staff on current eruption conditions at Kīlauea's summit, east rift zone vents and flow field.

An Icelandic volcano was prominently featured in March and April's news, first for its gentle, tourist-friendly eruptions, and later for its...

Volcano Watchers may pride themselves on having witnessed a variety of lava flows, but how many can say they've seen flowing molten sulfur? It happens...

Regular visitors to HVO's daily update Web page might notice what seems like a minor change in one of Kīlauea two ongoing eruptions. While sulfur...