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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 — 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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USGS HVO Press Release — Earthquake Causes Part of Kīlauea Caldera Rim to Collapse

USGS HVO Press Release — Earthquake Causes Part of Kīlauea Caldera Rim to Collapse

A magnitude-3.8 earthquake shook the Kīlauea summit region at 2:55 p.m. Wednesday afternoon.

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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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USGS HVO Press Release — Kīlauea East Rift Eruption Continues: Newest Lava Flows Restricted to Upper Elevations

USGS HVO Press Release — Kīlauea East Rift Eruption Continues: Newest Lava Flows Restricted to Upper Elevations

USGS field crews report that the lava pond inside the Pu‘u ‘Ō‘ō crater is at a depth of 190 feet below the rim, and is essentially unchanged since...

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USGS HVO Press Release — Lava Flows Issued from Tube System near Pu‘u ‘Ō‘ō

USGS HVO Press Release — Lava Flows Issued from Tube System near Pu‘u ‘Ō‘ō

Observations of the Pu‘u ‘Ō‘ō–Kupaianaha eruption relayed from helicopter tour pilots at 0800 hrs and 1030 hrs indicate that lava is flowing from two...

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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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USGS HVO Press Release — Lava Enters Tube System At Pu‘u ‘Ō‘ō

USGS HVO Press Release — Lava Enters Tube System At Pu‘u ‘Ō‘ō

Field observations of the Pu‘u ‘Ō‘ō–Kupaianaha eruption today show that lava has re-entered the old tube system near Pu‘u ‘Ō‘ō.

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