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Daily updates about ongoing eruptions, recent images and videos of summit and East Rift Zone volcanic activity, maps, and data about recent earthquakes in Hawaii are posted on the HVO website. 

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

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Volcano Watch — Volcweb: A new public tool for exploring earthquakes on Hawai‘i

Volcano Watch — Volcweb: A new public tool for exploring earthquakes on Hawai‘i

Recently the Hawaiian Volcano Observatory (HVO) launched Volcweb, an interactive portal for exploring earthquake information on the Hawaiian Islands...

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Volcano Watch — Why do swarms of earthquakes occur around the Ka‘ōiki Pali?

Volcano Watch — Why do swarms of earthquakes occur around the Ka‘ōiki Pali?

This question stems from the earthquake swarm that occurred near Nāmakanipaio Campground along the north end of the Ka‘ōiki Pali on February 22-24...

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Volcano Watch — Complex interactions between air and land help shape Hawai‘i Island

Volcano Watch — Complex interactions between air and land help shape Hawai‘i Island

Currently, in Hawai‘i, we find ourselves in the middle of ho‘oilo, or the wet season. While we all enjoy the dry season, known as kau, ho‘oilo is, in...

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Volcano Watch — Kalaupapa and Kauhakō: What a difference a few hundred thousand years can make

Volcano Watch — Kalaupapa and Kauhakō: What a difference a few hundred thousand years can make

Last fall, residents of Kalaupapa settlement on the Island of Moloka‘i began reporting unusual sulfurous odors coming from the direction of Kauhakō...

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Volcano Watch — Centennial poster contest winners honored by the Hawaiian Volcano Observatory

Volcano Watch — Centennial poster contest winners honored by the Hawaiian Volcano Observatory

The U.S. Geological Survey Hawaiian Volcano Observatory recently honored Hawai‘i Island students who created winning posters celebrating the...

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Volcano Watch —HVO's centennial open house draws a large and enthusiastic crowd

Volcano Watch —HVO's centennial open house draws a large and enthusiastic crowd

"Wow!" "I didn’t know that!" "Cool!"

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Volcano Watch —With a little help from our friends: Volunteers contribute to HVO's success

Volcano Watch —With a little help from our friends: Volunteers contribute to HVO's success

More than 300 employees—scientists, technicians, and support staff—have worked at HVO over the past century, but the observatory could not have been...

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Volcano Watch — Seismologist Jerry Eaton gives the Observatory a technology boost in the 1950s

Volcano Watch — Seismologist Jerry Eaton gives the Observatory a technology boost in the 1950s

From 1912 to 1950, HVO used mechanical seismometers, called tromometers (derived from "tremble"), that recorded the vibrations sensed by a long...

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Volcano Watch — How it all began—the first steps toward volcano monitoring in the United States

Volcano Watch — How it all began—the first steps toward volcano monitoring in the United States

Last week's Volcano Watch described the events and efforts that led up to Thomas Jaggar's arrival on Kīlauea to start monitoring the volcano.

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Volcano Watch — The Hawaiian Volcano Observatory is 100 years old this month

Volcano Watch — The Hawaiian Volcano Observatory is 100 years old this month

After almost three years of preparing and fund raising, Thomas A. Jaggar, Jr., arrived at the rim of Kīlauea on January 17, 1912, and began a...

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Volcano Watch — End of an Era at the Hawaiian Volcano Observatory

Volcano Watch — End of an Era at the Hawaiian Volcano Observatory

As many are undoubtedly aware, the Hawaiian Volcano Observatory (HVO) marks the Centennial of its founding in January 2012 (see http://hvo.wr.usgs.gov...

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Volcano Watch — American Geophysical Union conference highlights Hawaiian volcanism

Volcano Watch — American Geophysical Union conference highlights Hawaiian volcanism

Every December, an interesting phenomenon occurs in downtown San Francisco.

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