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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 caused the shake up on Friday night?

Volcano Watch — What caused the shake up on Friday night?

More than 7,000 people across the State of Hawaii submitted “Did You Feel It?” (DYFI) reports to the U.S. Geological Survey (USGS) after the magnitude...

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Volcano Watch — Kīlauea is all tied up at 47 episodes

Volcano Watch — Kīlauea is all tied up at 47 episodes

The lava fountains that erupted a week ago, on Thursday May 14, marked the 47th episode of the ongoing Halemaʻumaʻu eruption. This episode tied the...

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Volcano Watch — A “window” into forecasting fountaining episodes at Kīlauea’s summit

Volcano Watch — A “window” into forecasting fountaining episodes at Kīlauea’s summit

Over the past month, the frequency of fountaining events at the summit of Kīlauea has increased to nearly one per week. This is reminiscent of the...

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Volcano Watch — Think Hawaii has many volcanoes? Think again, says El Salvador

Volcano Watch — Think Hawaii has many volcanoes? Think again, says El Salvador

This past March, a team of U.S. Geological Survey (USGS) scientists—two of whom travelled from Hawaii—visited El Salvador in Central America for...

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Volcano Watch — Kīlauea summit eruptions outside of Halemaʻumaʻu

Volcano Watch — Kīlauea summit eruptions outside of Halemaʻumaʻu

We are used to seeing eruptions from the summit region of Kīlauea contained to the region that is referred to as Halemaʻumaʻu. Halemaʻumaʻu, home of...

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Volcano Watch — Shallow earthquakes and ground deformation at Kīlauea’s summit highlight hazards near Halemaʻumaʻu

Volcano Watch — Shallow earthquakes and ground deformation at Kīlauea’s summit highlight hazards near Halemaʻumaʻu

The USGS Hawaiian Volcano Observatory (HVO) detected an increase in shallow seismicity and localized ground deformation beneath the south rim of...

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Volcano Watch — Fountains and festivities: Kīlauea erupts episode 44 as Merrie Monarch begins

Volcano Watch — Fountains and festivities: Kīlauea erupts episode 44 as Merrie Monarch begins

As Hilo was bustling with activity for the Merrie Monarch Festival, Kīlauea was brewing for episode 44 of lava fountaining, which happened for 8.5...

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April 11, 2026—HVO monitoring network outage

April 11, 2026—HVO monitoring network outage

On Saturday, April 11, the USGS Hawaiian Volcano Observatory (HVO) noted an outage of its radio telemetry network, resulting in the loss of multiple...

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Volcano Watch — Caldera clues: tephra deposits from Kīlauea’s past

Volcano Watch — Caldera clues: tephra deposits from Kīlauea’s past

Past “Volcano Watch” articles have summarized the episodic lava fountaining eruptions in Kīlauea’s recent history—within the past couple hundred years...

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Volcano Watch — Adapting to an evolving eruption: revising Kīlauea’s Alert Level and Aviation Color Code Notifications

Volcano Watch — Adapting to an evolving eruption: revising Kīlauea’s Alert Level and Aviation Color Code Notifications

The USGS Volcano Alert Level (ground-based hazards) and Aviation Color Code (airborne hazards) communicate Kīlauea status and activity. After episode...

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Volcano Watch — Taking Kīlauea’s Temperature

Volcano Watch — Taking Kīlauea’s Temperature

Geochemical analysis of erupted tephra samples over the past decade help scientists understand the temperature of Kīlauea’s shallow magma system under...

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Volcano Watch — Pele, Lono, and Hiʻiaka remind us of Nature’s power

Volcano Watch — Pele, Lono, and Hiʻiaka remind us of Nature’s power

The summit region of Kīlauea experienced tephra fallout and a Kona low storm this past week. Cleanup, recovery, and regrowth is ongoing. These...

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