Skip to main content
U.S. flag

An official website of the United States government

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: 1680
Volcano Watch — Can rocks speak to us? Yes, they can!

Volcano Watch — Can rocks speak to us? Yes, they can!

Oftentimes, in videos of Hawaiian eruptions, you may see people near the vent or the lava rivers sampling the molten rock. This can be dangerous work...

Read Article
Volcano Watch — Volcanic Hazards Continue, Rain or Shine

Volcano Watch — Volcanic Hazards Continue, Rain or Shine

While most island residents were understandably concerned about our week of intense rain, HVO staff continued to monitor Kīlauea Volcano's eruption.

Read Article
Volcano Watch — Innovator in Hawaiian Volcanic Gas Studies Buoyantly Leaves the Melt

Volcano Watch — Innovator in Hawaiian Volcanic Gas Studies Buoyantly Leaves the Melt

In early June 1980, high on the south flank of Mount St. Helens, two geochemists hastily installed state-of-the-art equipment to monitor magmatic gas...

Read Article
Volcano Watch — Rootless Shields are Not a Gang of Nomadic Warriors

Volcano Watch — Rootless Shields are Not a Gang of Nomadic Warriors

Until last November, the current eruption was characterized by a perched lava channel. The fissure system that opened up just east of Pu`u `O`o on...

Read Article
Volcano Watch — Royal Gardens is No Stranger to Lava Flows

Volcano Watch — Royal Gardens is No Stranger to Lava Flows

Royal Gardens subdivision was back in the news again this past week as a lava flow from the July 21 fissure advanced to within 300 m (985 ft) of the...

Read Article
Volcano Watch — Why do most east-rift eruptions start along the lower Chain of Craters?

Volcano Watch — Why do most east-rift eruptions start along the lower Chain of Craters?

The Father's Day eruption last June occurred in the most frequently active segment of Kīlauea's east rift zone. What is this segment, and why are...

Read Article
Volcano Watch — Kiholo Bay Aftershocks - Thumping for Science

Volcano Watch — Kiholo Bay Aftershocks - Thumping for Science

As we greet our new year at the U S Geological Survey's (USGS) Hawaiian Volcano Observatory (HVO), we take a look back at the Kīholo Bay earthquakes.

Read Article
Volcano Watch — 25 years of eruption: Looking back and ahead

Volcano Watch — 25 years of eruption: Looking back and ahead

January 3, 2008, marks the 25th anniversary of Kīlauea's ongoing Pu`u O`o-Kupaianaha eruption.

Read Article
Volcano Watch — Santa is not the only eye in the sky on Christmas

Volcano Watch — Santa is not the only eye in the sky on Christmas

As the winter holidays unfold around us, many keiki (children) dream of Santa and his reindeer traveling the skies on Christmas Eve.

Read Article
Volcano Watch — Kīlauea's latest activity rates special session at international meeting

Volcano Watch — Kīlauea's latest activity rates special session at international meeting

Last weekend, seven staff members of the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) fled the stormy weather of the Big Island for the...

Read Article
Volcano Watch — Can Hawaiian lava flows be diverted?

Volcano Watch — Can Hawaiian lava flows be diverted?

Whenever lava flows threaten communities, a commonly asked question is "Can lava flows be diverted if populated areas are threatened?" Answers have...

Read Article
Volcano Watch — Widespread Secondary Volcanism around Kaua`i

Volcano Watch — Widespread Secondary Volcanism around Kaua`i

The University of Hawai`i (UH) research ship Kilo Moana returned recently from a four-week expedition mapping and sampling the sea floor around the...

Read Article