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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 — A look back at powerful Halemaumau eruptions of 1924

Volcano Watch — A look back at powerful Halemaumau eruptions of 1924

Precisely 74 years ago today, the final chapter of one of Kīlauea's most alarming displays of volcanic power came to a close. Halema`uma`u, the fire...

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Volcano Watch — Youngest flows in Haleakalā Crater about 800-1,000 years old

Volcano Watch — Youngest flows in Haleakalā Crater about 800-1,000 years old

The story is told of how Maui snared the sun, holding it hostage atop Haleakalā until he slowed its passage across the sky. One result of this slow...

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Volcano Watch — The dating game

Volcano Watch — The dating game

The announcement last week that astronomers at Keck Observatory had looked back 12.3 billion years in time was astounding. When you think about it...

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Volcano Watch — Living Intelligently with geological hazards

Volcano Watch — Living Intelligently with geological hazards

As April draws to a close, so ends Tsunami Awareness Month in the State of Hawai`i. Tsunami Awareness Month featured programs and events coordinated...

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Volcano Watch — Shhh! Don't tell there is an eruption - Eruption of 1942

Volcano Watch — Shhh! Don't tell there is an eruption - Eruption of 1942

The eruption of 1942 was noteworthy for several reasons. (1) It was declared a secret so the press was not allowed to publicize the event. (2) This...

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Photo and Video Chronology - Kilauea - April 17, 1998

Photo and Video Chronology - Kilauea - April 17, 1998

Surges Interspersed Among Steady-state Activity

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Volcano Watch — Lest we forget

Volcano Watch — Lest we forget

Govenor Ben Cayetano's proclamation of April as "Tsunami Awareness Month" in Hawai`i is a timely one, for a generation of residents has grown up...

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Volcano Watch — Sleeping giants Hualālai and Haleakalā require prudent monitoring

Volcano Watch — Sleeping giants Hualālai and Haleakalā require prudent monitoring

In some regards, monitoring an active volcano is easy; the constant bustle keeps a watcher on his or her toes. But what if a volcano hasn't erupted in...

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Volcano Watch — Where will the next Hawaiian volcano appear?

Volcano Watch — Where will the next Hawaiian volcano appear?

As we all know, there are no facts about the future. We cannot know for sure what will happen tomorrow, much less next year or 1,000 years from now...

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Volcano Watch — How fast does Hawaiian lava flow?

Volcano Watch — How fast does Hawaiian lava flow?

While watching the Olympics a few weeks ago, I started wondering how our lava flows would place in typical competitions. Of course, it wouldn't be...

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Volcano Watch — HVO in cyberspace: new web site goes online

Volcano Watch — HVO in cyberspace: new web site goes online

Sharing the results of scientific investigations on Hawai`i's volcanoes has always been a primary goal of scientists working at the Hawaiian Volcano...

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Photo and Video Chronology - Kilauea - March 16, 1998

Photo and Video Chronology - Kilauea - March 16, 1998

East Rift Zone Eruption Quietly Delivers Lava to the Sea

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