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Date published: November 6, 2008

Volcano Watch — Halema`uma`u Crater Ringed by Remains of Old Lava Lake

Have you ever noticed the "bathtub ring" in Halema`uma`u? Look into the crater from Jaggar Overlook—or via HVO's Halema`uma`u Webcam—and you'll see a distinct band of light-colored rocks extending about halfway up the crater wall. Those rocks delineate the high-lava mark of a lake of molten rock erupted 41 years ago.

Date published: October 9, 2008

Volcano Watch — Amid Financial Turmoil, Kīlauea's "Budget" Appears Sound but the Forecast is Voggy

As candidates spar over the current economic crisis, how it happened, and how we might recover, one thing seems clear here in Hawai`i: Kīlauea is in it for the long haul.

Date published: September 20, 2008

USGS HVO Press Release — Magnitude-4.3 Earthquake Occurs on Kīlauea's South Flank

For the first time since the new vent opened in Halema‘uma‘u Crater on March 19, HVO A magnitude-4.3 earthquake was located beneath the south flank of Kīlauea Volcano by the U.S. Geological Survey's Hawaiian Volcano Observatory on Friday, September 19, at 5:59 p.m. HST. 

Date published: September 8, 2008

USGS HVO Press Release — Sloshing Lava Lake Viewed within Halema‘uma‘u Vent

For the first time since the new vent opened in Halema‘uma‘u Crater on March 19, HVO scientists in a helicopter hovering over the crater were able to see the surface of a sloshing 50 m (160 ft) diameter lava lake about 100 m (330 ft) below the vent rim. 

Date published: August 28, 2008

Volcano Watch — Footprints in Ka`u were probably made in 1790—but not by Keoua's party

Many readers know that a party of warriors and their families led by Keoua was decimated by an explosive eruption (called Keonehelelei—the falling sand—by contemporaries) of Kīlauea in November 1790. Estimates of the number of fatalities range from about 80 to 5,405.

Date published: August 21, 2008

Volcano Watch — What are Halema`uma`u's smoke and other signals telling us?

Though nearly all of the seismic data processing, analysis, and presentation at the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) have long been computer-based, we continue to operate drum seismographs that produce hard-copy records by pens or heated needles that write across papers wrapped around the drum.

Date published: August 14, 2008

Volcano Watch — In Every Volcanic Paradise, a Little Vog Must Fall

Locally, the term "vog" has become a household word, with a rash of media articles and even a respectable Wikipedia entry online. After 25 years of nearly continuous eruption on Kīlauea's east rift zone and over six months of increased gas emissions from Kīlauea's summit, most Hawai`i Island residents and many visitors are well acquainted with this volcanic air pollution.

Date published: July 31, 2008

Volcano Watch — Halema`uma`u appears laid back but . . .

In contrast to the spectacular incandescent explosions and springtime spatter showers at the Halema`uma`u Overlook in March and April, the eruptive vent at the summit of Kīlauea Volcano seems to have adopted a laid-back summer attitude, with a steady plume rising from a dull glowing hole at the base of the southeast wall of the crater.

Date published: July 24, 2008

Volcano Watch — Volcanologists Work the Night Shift Watching Halema`uma`u's New Vent

Have you ever wondered what it's like to work the night shift at a volcano observatory? Probably not, but for volcanologists, sitting in the glass-enclosed HVO tower from 8:00 p.m. until 4:00 a.m watching the Halema`uma`u eruption is an exciting opportunity.

Date published: July 17, 2008

Volcano Watch — Spectacular Show Underway at Lava Ocean Entry

Kīlauea is putting on a tremendous display near Kalapana, where lava is entering the ocean after traveling through a tube system that originates high on the east rift zone.

Date published: July 10, 2008

Volcano Watch — An Exciting End to June at Kīlauea

One of the most surprising aspects of the current summit eruption at Kīlauea Volcano, which started in March of this year, is that there has been almost no change in surface deformation trends.