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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 — 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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Photo & Video Chronology — May 5, 2026 — Kīlauea episode 46

Photo & Video Chronology — May 5, 2026 — Kīlauea episode 46

Episode 46 of lava fountaining in Halemaʻumaʻu at the summit of Kīlauea began at 8:17 a.m. HST on May 5, after one day of precursory activity. The...

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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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Photo & Video Chronology — April 30, 2026 — Satellite imagery showing changes to Kīlauea summit region

Photo & Video Chronology — April 30, 2026 — Satellite imagery showing changes to Kīlauea summit region

Satellite images collected before and during the episodic lava fountaining eruption at the summit of Kīlauea show how the deposits from this eruption...

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Photo & Video Chronology — April 23, 2026 — Kīlauea episode 45

Photo & Video Chronology — April 23, 2026 — Kīlauea episode 45

Episode 45 of lava fountaining in Halemaʻumaʻu at the summit of Kīlauea began at 1:34 a.m. HST on April 23, after two days of precursory activity, and...

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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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Photo & Video Chronology — April 14, 2026 — Resolving HVO monitoring network outage

Photo & Video Chronology — April 14, 2026 — Resolving 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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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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Photo & Video Chronology — April 9, 2026 — Kīlauea summit episode 44

Photo & Video Chronology — April 9, 2026 — Kīlauea summit episode 44

Episode 44 of lava fountaining at the summit of Kīlauea took place on April 9, 2026. Southerly/southwesterly winds resulted in the plume being...

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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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New open access articles on Mauna Loa 2022 eruption

New open access articles on Mauna Loa 2022 eruption

Recent publications in a special Bulletin of Volcanology volume, titled, "Mauna Loa 2022 – Unrest, Eruption, and Outreach at the World’s Largest...

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