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Date published: August 6, 1998

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. Scientists have studied the layers of tephra visible in gullies along the southwest rift zone in Hawai`i Volcanoes National Park and have concluded that this event was the only major explosion of the last 2000 years.

Date published: July 30, 1998

Volcano Watch — Real nerds, real people

The mission of the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) is to monitor the volcanoes of Hawai`i, to study the geological processes associated with eruptive and seismic activities, and to inform the public of the potential geologic hazards associated with volcanoes.

Date published: July 23, 1998

Volcano Watch — Lava flows make good time markers

Although the study of volcanoes is, in itself, fascinating and is more than a full-time job, volcanologists also work closely with researchers in other sciences. One of the things we contribute to the work of other scientists is the ages of the lava flows around the island.

Date published: July 16, 1998

Volcano Watch — Are we breaking away - The great crack

In a recent national television program on tsunami, attention was focused on the Great Crack in the southwest rift zone of Kīlauea. The size of the crack was presented as evidence that the south flank was breaking away from the island. 

Date published: July 10, 1998

Photo and Video Chronology - Kīlauea - July 10, 1998

Eruption Continues and New Land Frequently Collapses

Date published: July 9, 1998

Volcano Watch — Waha`ula, the coastal lava entry that will not die

When lava enters the sea, it begins a struggle to build new land. We name these entries for nearby geographic features—Lae`apuki, Kamoamoa, Kamokuna, Waha`ula, to list a few. For a brief time they become places memorable to anyone who visits and watches the spectacle of incandescent lava, immense steam plumes, and spattering explosions. That's how entries begin, but how do they end?

Date published: July 2, 1998

Volcano Watch — Is Mount St. Helens about to wake up?

It has been more than 18 years since Mount St. Helens had its powerful eruption, almost 12 years since its latest quiet dome-building eruption, and 8 years since its latest small explosions. But this length of time is just a wink of the eye to a volcano. 

Date published: June 25, 1998

Volcano Watch — "COSPEC" helps observatory scientists study volcanic pollution and processes

Discussions of volcanic air pollution from Kīlauea frequently start out with a conversation about the large amount of sulfur dioxide gas (SO2) that bubbles out of the volcano and is converted in air to the tiny acidic sulfate particles that form vog (volcanic smog). 

Date published: June 11, 1998

Volcano Watch — Bench collapse sparks lightning, roiling clouds

Four of us HVO lava junkies had the rare opportunity to witness a partial bench collapse on Monday evening, June 8. The collapse began at 7:40 p.m. when a slab of incandescent lava fell outward from the bench edge into the ocean. The hot rock was fragmented by steam explosions as it hit the sea water, and the steam cloud became abruptly darker as the rock fragments were blasted upward....

Date published: June 5, 1998

Photo & Video Chronology - Kīlauea Archive - June 5, 1998

Lava Continues to Erupt from Pu`u `O`o and Flow Into the Sea

Date published: June 5, 1998

Photo and Video Chronology - Kīlauea - June 5, 1998

Lava Continues to Erupt from Pu`u `O`o and Flow Into the Sea

Date published: June 4, 1998

Volcano Watch — Just how hot is that ocean at the lava entry?

Billowing clouds of steam rising from two discrete locations along the Kamokuna-Waha`ula coastline are often the only reminders we have of Kīlauea Volcano's near-constant effusion of lava into the sea.