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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: 1751
Volcano Watch — Rising to great heights: rocks in the jet stream?

Volcano Watch — Rising to great heights: rocks in the jet stream?

Air travelers to Hawai`i are familiar with the jet stream. The strong, high-level winds typically come from the northwest and slow west-bound flights...

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Volcano Watch — What if the 1984 flow from Mauna Loa hadn't stopped?

Volcano Watch — What if the 1984 flow from Mauna Loa hadn't stopped?

Several recent "Volcano Watch" columns have dealt with Mauna Loa and the implications of renewed inflation of its summit. For better or worse, this...

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Volcano Watch — Calibrating earthquake counts beneath Mauna Loa

Volcano Watch — Calibrating earthquake counts beneath Mauna Loa

A "Volcano Watch" article several weeks ago indicated changes occurring atop Mauna Loa. Specifically, global positioning system (GPS) receivers on...

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Volcano Watch — "Methane" explosions-a volcanic hazard worth understanding

Volcano Watch — "Methane" explosions-a volcanic hazard worth understanding

Recent visitors to the coastal eruption site, especially those unwise enough to approach the flow margins where lava is encroaching on vegetation, are...

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Volcano Watch — What if it's a summit eruption?

Volcano Watch — What if it's a summit eruption?

In the Volcano Watch article two weeks ago, we broke the news that the summit area of Mauna Loa is swelling for the first time since 1993. If this...

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Volcano Watch — Inactive benches quickly become stable

Volcano Watch — Inactive benches quickly become stable

Many streams of lava entering the ocean are shattered to bits in the surf zone. These loose fragments gradually build layers of rubble on the steep...

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Volcano Watch — What's happening at Mauna Loa?

Volcano Watch — What's happening at Mauna Loa?

Mauna Loa has gone 18.5 years without eruption--the second longest dry spell since detailed records begin in 1843. The longest period without eruption...

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Volcano Watch — USGS sends team to assess eruption hazards in Papua New Guinea

Volcano Watch — USGS sends team to assess eruption hazards in Papua New Guinea

In early August, Pago volcano, on the central coast of New Britain Island, suddenly began exploding rocks and volcanic ash into the air. Thousands of...

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Volcano Watch — Clues to Mauna Loa's plumbing system

Volcano Watch — Clues to Mauna Loa's plumbing system

Recent work sheds light on Mauna Loa's magmatic plumbing. The U.S. Geological Survey has embarked on scientific investigations of the plumbing system...

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Volcano Watch — At least some footprints in the Ka`u Desert are older than 1790

Volcano Watch — At least some footprints in the Ka`u Desert are older than 1790

Luckily, Hawai`i experiences volcanic ash much less often than it does lava flows. When it comes, though, it can be anything from a nuisance to a...

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Volcano Watch — Remembering and honoring one of Hilo's own - Reggie Okamura 1936 - 1999

Volcano Watch — Remembering and honoring one of Hilo's own - Reggie Okamura 1936 - 1999

"Please do not let this rain dampen your spirits," Senator Daniel Inouye urged the gathering on a misty, breezy Volcano morning.

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Volcano Watch — The Threat of Tsunami

Volcano Watch — The Threat of Tsunami

Big Island residents have long contended with the threat of tsunami. The central Pacific is, unfortunately, ground zero for many of the world's most...

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Volcano Watch — Contrasting the hazards of earthquakes and volcanoes

Volcano Watch — Contrasting the hazards of earthquakes and volcanoes

On May 22, 1960, the largest earthquake ever recorded struck the coast of western Chile. The magnitude of this quake was so great that it literally...

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Volcano Watch — Deep-diving submersible unveils secrets of the volcanoes

Volcano Watch — Deep-diving submersible unveils secrets of the volcanoes

On May 22, 1960, the largest earthquake ever recorded struck the coast of western Chile. The magnitude of this quake was so great that it literally...

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Volcano Watch — How the lava viewing got to be so great

Volcano Watch — How the lava viewing got to be so great

The past two weeks have been exceptional for viewers of Kilauea's lava flows. Both colorful and convenient, the flows have drawn visitors to the...

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Volcano Watch — Kīlauea lava meets the sea again: will you be assaulted by a salty (and stinging) plume?

Volcano Watch — Kīlauea lava meets the sea again: will you be assaulted by a salty (and stinging) plume?

"The only constant is change" is an adage that certainly applies to Kīlauea Volcano. Over the past weeks volcano watchers have been treated to views...

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Volcano Watch — The strong, silent type

Volcano Watch — The strong, silent type

In early November 2000, the largest earthquake to strike the Big Island in more than a decade occurred, yet no one, not even seismologists, noticed it...

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Volcano Watch — A reminder that we live in earthquake country..

Volcano Watch — A reminder that we live in earthquake country..

For years, scientists have tried to understand what causes earthquakes. They have recorded, catalogued, and analyzed them.

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Volcano Watch — The golden pumice of Kīlauea

Volcano Watch — The golden pumice of Kīlauea

Hawaiian volcanoes are rich in excitement, beauty, and challenge, but they're not awash in mineral resources. How is it, then, that Kīlauea has a...

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Volcano Watch — Hawaiians` view of Hawai`i Geologic History

Volcano Watch — Hawaiians` view of Hawai`i Geologic History

Many of us look at a landscape and wonder how it got that way and others wonder how they can make money off it even if they don't use Arthur Anderson...

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Volcano Watch — What's cooking at Kīlauea?

Volcano Watch — What's cooking at Kīlauea?

Pele has been restless lately-she has changed her mood twice since late last year.

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