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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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Photo and Video Chronology - Kīlauea - November 17, 2017

Photo and Video Chronology - Kīlauea - November 17, 2017

Weak flows on Kamokuna delta

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Volcano Watch — Drive along Saddle Road reveals outstanding volcanic geology

Volcano Watch — Drive along Saddle Road reveals outstanding volcanic geology

Route 200, the Daniel K. Inouye Highway, crosses Humu‘ula Saddle, which separates Mauna Kea and Mauna Loa, the two largest volcanoes on the Island of...

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Photo and Video Chronology - Mauna Loa - November 15, 2017

Photo and Video Chronology - Mauna Loa - November 15, 2017

Lava flows, Pu‘u Pohaku‘ohanalei cone, Moku‘āweoweo's North Pit, Sulphur Cone area, and a video of Mauna Loa's summit caldera.

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Photo and Video Chronology - Kīlauea - November 15, 2017

Photo and Video Chronology - Kīlauea - November 15, 2017

Views of Kīlauea caldera

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Photo and Video Chronology - Kīlauea - November 10, 2017

Photo and Video Chronology - Kīlauea - November 10, 2017

Ocean entry inactive; breakouts continue on delta and coastal plain

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Volcano Watch — Magma: What's hot and what's not

Volcano Watch — Magma: What's hot and what's not

Scientists at the USGS Hawaiian Volcano Observatory routinely collect lava samples from Kīlauea and use the chemistry of these samples to infer the...

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Volcano Watch — Threat Rankings of our Nation’s geologically young volcanoes

Volcano Watch — Threat Rankings of our Nation’s geologically young volcanoes

What exactly do volcano threat rankings mean?

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Photo and Video Chronology - Kīlauea - November 1, 2017

Photo and Video Chronology - Kīlauea - November 1, 2017

Activity at Pu‘u ‘Ō‘ō and on the 61g flow

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New USGS publication: Lava inundation zone maps for Mauna Loa, Island of Hawai‘i, Hawaii

New USGS publication: Lava inundation zone maps for Mauna Loa, Island of Hawai‘i, Hawaii

Lava flows from Mauna Loa volcano, on the Island of HAWAII, constitute a significant hazard to people and property. This report addresses those lava...

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Volcano Watch — USGS maps identify lava inundation zones for Mauna Loa

Volcano Watch — USGS maps identify lava inundation zones for Mauna Loa

Using detailed geologic mapping and modeling of how a fluid (in this case, lava) responds to surface topography, USGS-HVO constructed nine maps...

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Photo and Video Chronology - Kīlauea - October 26, 2017

Photo and Video Chronology - Kīlauea - October 26, 2017

Lava breakouts continue on the coastal plain and on the delta

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Volcano Watch — New USGS video about Kīlauea Volcano's summit eruption is now online

Volcano Watch — New USGS video about Kīlauea Volcano's summit eruption is now online

The U.S. Geological Survey has produced a documentary, "Kīlauea Summit Eruption–Lava Returns to Halema‘uma‘u," to tell the story of the eruption, and...

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