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Volcano Watch

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. 

The USGS Hawaiian Volcano Observatory will not publish Volcano Watch articles during the lapse in federal government appropriations. 

Filter Total Items: 1752
Volcano Watch — Eruption Update—August 8

Volcano Watch — Eruption Update—August 8

Pele continued her march to the sea in the two months since our last eruption update through Volcano Watch. Lava reached the ocean on July 12 and...

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Volcano Watch — The first written account of Kīlauea

Volcano Watch — The first written account of Kīlauea

The English missionary, Rev. William Ellis, visited the summit region of Kīlauea 174 years ago this week and made the first written description of...

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Volcano Watch — Fishponds versus lava flows

Volcano Watch — Fishponds versus lava flows

The North Kona Coast of the Big Island is fortunate to have several Hawaiian fishponds preserved. These ponds were major construction feats by which...

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Volcano Watch — Update on Soufriere Hills, Montserrat

Volcano Watch — Update on Soufriere Hills, Montserrat

Last Friday, July 18, marked the two-year anniversary of the ongoing eruption of Soufriere Hills volcano on the small Caribbean island of Montserrat...

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Volcano Watch — How big was it? Magnitude and intensity of an earthquake

Volcano Watch — How big was it? Magnitude and intensity of an earthquake

Following the June 30th M5.3 Kalapana earthquake, there seemed to be a misunderstanding of what the magnitude of an earthquake really means.
 

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Volcano Watch — Earthquake reflects instability of Kīlauea's south flank

Volcano Watch — Earthquake reflects instability of Kīlauea's south flank

The earthquake that woke many Big Island residents at 5:47 a.m. on Monday, June 30, was the biggest on the island since February 1, 1994, and the...

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Volcano Watch — Increases in vog may not mean increases in volcanic activity

Volcano Watch — Increases in vog may not mean increases in volcanic activity

Sometimes people call the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) and ask us if more gas is coming out of the volcano because air...

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Volcano Watch — The Valley of Ten Thousand Smokes

Volcano Watch — The Valley of Ten Thousand Smokes

A popular local morning radio program had a contest early last week, and the question posed was "Where is the Valley of Ten Thousand Smokes?"...

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Volcano Watch — Kīlauea Eruption Update—June 13, 1997

Volcano Watch — Kīlauea Eruption Update—June 13, 1997

Kīlauea's 14-year-old east rift zone eruption continues. Episode 55, ongoing since February 24, 1997, is characterized by shifting vent locations...

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Volcano Watch — Kīlauea is the nation's most deadly volcano

Volcano Watch — Kīlauea is the nation's most deadly volcano

What volcano in the United States has been the most deadly since the country was founded? Mount St. Helens? Mount Rainier? Lassen Peak? Good guesses...

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Volcano Watch — Dikes in the East Rift Zone

Volcano Watch — Dikes in the East Rift Zone

Great rift zones define the divergent boundaries in the mosaic of mobile tectonic plates that form the Earth's crust. From these divergent plate...

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Volcano Watch — Volcano hazards training course

Volcano Watch — Volcano hazards training course

Once again, with the end of the spring semester, the Center for the Study of Active Volcanoes (CSAV) at the University of Hawaii at Hilo has begun its...

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Volcano Watch — HVO goes to the movies!

Volcano Watch — HVO goes to the movies!

A few evenings ago the staff of the Hawaiian Volcano Observatory took a field trip to Prince Kuhio Plaza to see the latest disaster film, VOLCANO...

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Volcano Watch — Kīlauea: Eruption Status—May 9

Volcano Watch — Kīlauea: Eruption Status—May 9

Many residents have noticed the bright orange glow coming from Kīlauea's eruption site on recent nights. Judging from the phone calls we receive at...

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Volcano Watch — The Mauna Ulu eruption 1969-1974

Volcano Watch — The Mauna Ulu eruption 1969-1974

The Mauna Ulu eruption on Kīlauea's east rift zone began 28 years ago this month, on May 24, 1969. For the next 2.5 years eruption was almost...

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Volcano Watch — Lava Flows of Hilo

Volcano Watch — Lava Flows of Hilo

Hilo is situated on lava flows from two of the five volcanoes that form the Island of Hawai`i. However, most of the surface flows one drives by (and...

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Volcano Watch — Earthquake risk can be reduced

Volcano Watch — Earthquake risk can be reduced

Regular readers of this column should not have been surprised last week by the news article stating that the earthquake risk on the Big Island is as...

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Volcano Watch — Lava is on the move again

Volcano Watch — Lava is on the move again

The 55th episode of Kīlauea's east rift zone eruption has resumed with the vigor that characterized the eruption prior to January 30. We mark the...

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Volcano Watch — When is Kīlauea erupting?

Volcano Watch — When is Kīlauea erupting?

I answered the phone last week to a perplexed voice asking, "The paper says Pu`u `O`o is erupting but there aren't any lava flows. How can it be...

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Volcano Watch — The next Hualālai eruption

Volcano Watch — The next Hualālai eruption

What will the next eruption of Hualālai be like? The first step in answering that question is to find out what the last several eruptions were like...

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Volcano Watch — Thomas Jaggar, HVO

Volcano Watch — Thomas Jaggar, HVO

Dr. Thomas L . Wright, HVO's Scientist-in-Charge from 1984 to 1991, returned to the Big Island for a short visit last week to conduct studies of the...

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