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Volcano Watch

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. 

Filter Total Items: 1586
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Volcano Watch — Where’s that lava headed and when will it get there?

When lava flows break out on the flanks of Kīlauea or Mauna Loa, Hawaiʻi residents and emergency management agencies want to know what to expect...

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Volcano Watch — Ahuʻailāʻau gets a geophysical “X-ray” using ground penetrating radar

In the last few months, "Volcano Watch" articles have introduced several research projects funded by the Additional Supplemental Disaster Relief Act...

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Volcano Watch — HVO’s new physical volcanology lab instruments are ready for action

The USGS Hawaiian Volcano Observatory (HVO) has recently completed the purchase, installation, and calibration of a new physical volcanology...

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Volcano Watch — Recent eruptions in Iceland sparked interest far and wide

Footage of Iceland’s Fagradalsfjall eruption on Reykjanes Peninsula in 2021 showed glowing lava flows and bubbling cones that were evocative of...

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Volcano Watch — A bright future for HVO’s Geodetic Network

The USGS Hawaiian Volcano Observatory’s (HVO’s) geodetic network is actively being upgraded to help scientists monitor and respond to volcanic...

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Volcano Watch — HVO Responds to American Samoa Earthquake Reports

Earthquakes have been felt since late July in the Manuʻa Islands of American Samoa in the South Pacific. These earthquakes are likely associated with...

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Volcano Watch — Mauna Loa: The sleeping giant

Covering over half of the Island of Hawai‘i, Mauna Loa is sometimes referred to as a “sleeping giant” because it hasn’t erupted in 38 years after...

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Volcano Watch — Kīlauea’s summit lava lake continues to be quietly remarkable

The ongoing eruption at the summit of Kīlauea hasn’t made the news recently, but that doesn’t mean the recent eruptive activity hasn’t been noteworthy...

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Volcano Watch — Hualālai’s Wahapele eruption: cone-building, explosive phreatic activity, and lava flows

While our attention is generally drawn to the Island of Hawai‘i’s most active volcanoes, Kīlauea and Mauna Loa, it is also important to keep watch on...

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Volcano Watch — HVO geologist Frank Trusdell receives Meritorious Service Award

Frank A. Trusdell, a research geologist at the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO), recently received a Meritorious Service...

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Volcano Watch — What is a volcano?

What makes a volcano a volcano? This was the topic of a “Volcano Watch” article about 20 years ago. Recent questions from visitors suggest this...

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Volcano Watch — Picturing a plume

The volcanic gas plume at the summit of Kīlauea Volcano in Hawai‘i Volcanoes National Park is often the most visible indication of the ongoing...

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