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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 — What can we learn from the lava level in Halema‘uma‘u?

Volcano Watch — What can we learn from the lava level in Halema‘uma‘u?

Considering the recent activity in Halema‘uma‘u Crater, just how reliable is its lava-lake level for judging the potential of an upcoming eruptive...

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Volcano Watch — Is Kīlauea quieting down or just taking a break?

Volcano Watch — Is Kīlauea quieting down or just taking a break?

The last month was busy at the Hawaiian Volcano Observatory, with scientists keeping a keen eye on monitoring data and preparing for a possible change...

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Volcano Watch — Kīlauea’s inflation means we might see more lava soon…

Volcano Watch — Kīlauea’s inflation means we might see more lava soon…

Last week we discussed the change in seismicity that has occurred at Kīlauea.

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Volcano Watch — Kīlauea has the shakes—Up and down the rift

Volcano Watch — Kīlauea has the shakes—Up and down the rift

Astute watchers of recent earthquake activity at Kīlauea have noticed a marked increase of earthquakes, both within the summit caldera and in a...

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Volcano Watch — Mauna Loa—out of the limelight but not down for the count!

Volcano Watch — Mauna Loa—out of the limelight but not down for the count!

A new fact sheet on Mauna Loa titled "Mauna Loa—History, Hazards, and Risk of Living With the World’s Largest Volcano" is now available. This week's...

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Volcano Watch — Kīlauea Volcano's summit vent plays a multisensory symphony

Volcano Watch — Kīlauea Volcano's summit vent plays a multisensory symphony

On trade wind days, which prevail much of the year, visitors to Kīlauea's summit are greeted by the majestic sight of a towering eruption plume that...

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Volcano Watch — Kīlauea Volcanic Rift Zones subside whether or not they host geothermal developments

Volcano Watch — Kīlauea Volcanic Rift Zones subside whether or not they host geothermal developments

Recently, Hawaiian Volcano Observatory scientists have been asked if Hawai‘i Island's geothermal development causes subsidence of the ground surface...

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Volcano Watch — Will drilling into magma start a volcanic eruption?

Volcano Watch — Will drilling into magma start a volcanic eruption?

It seems logical that if underground magma can start an eruption by forcing its way to the surface, one might also start an eruption by opening a...

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Volcano Watch — Kīlauea’s 1971 Southwest Rift Zone Eruption: A First in 52 Years

Volcano Watch — Kīlauea’s 1971 Southwest Rift Zone Eruption: A First in 52 Years

On September 24, 1971, Kīlauea’s southwest rift zone erupted for the first time in 52 years.

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Volcano Watch — Lake Waiau is part of Mauna Kea's glacial past

Volcano Watch — Lake Waiau is part of Mauna Kea's glacial past

As days get shorter and nights cooler, we look to the summits of majestic Mauna Kea after rainstorms to see whether there might be a cap of pure white...

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Volcano Watch — Volcanic ash task force strengthens international consensus on aviation safety procedures

Volcano Watch — Volcanic ash task force strengthens international consensus on aviation safety procedures

The relatively small explosive eruption of Iceland's Eyjafjallajökull volcano more than two years ago focused attention on the hazards of volcanic ash...

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Volcano Watch — HVO exchanges scientists with French Volcano Observatory

Volcano Watch — HVO exchanges scientists with French Volcano Observatory

In late August, volcano scientists from around the world gathered in Waikōloa, Hawai‘i, and shared what they have learned about how Hawaiian volcanoes...

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