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Date published: December 20, 2018

Volcano Watch — A Field Trip to the Mountain of Water

The field day begins with a summit weather check at first light. It is a reflective moment at 6:15 AM atop Kīlauea Volcano, and the fumarole cracks are steaming like the coffee from my thermos. The weather at Halema‘uma‘u crater is cool and dry, with light trade winds from the northeast. We hope for these mornings.

Date published: December 13, 2018

Volcano Watch — January is Volcano Awareness Month

January 2019 marks the 10th annual “Volcano Awareness Month” on the Island of Hawai‘i.

Date published: December 6, 2018

Volcano Watch — Ninety days with no lava: a milestone for Kīlauea’s 2018 eruption

One of the most frequently asked questions of USGS Hawaiian Volcano Observatory (HVO) scientists over the last several months has been, “Is the eruption over?”

Date published: November 29, 2018

Volcano Watch — Now is an exciting time at Kīlauea

This is, without a doubt, the most intellectually exciting time to be a volcanologist at the USGS Hawaiian Volcano Observatory. The current inactivity at Kīlauea has so many possible outcomes that it is a real challenge to figure out what might happen next. And intellectual challenges are stimulating and exciting.

Date published: November 21, 2018

Volcano Watch — We're giving thanks for clean air, but what's that new smell?

In this season of giving thanks, Island of Hawai‘i residents and visitors can be thankful for the return of good air quality, generally free of volcanic air pollution.

Date published: November 15, 2018

Volcano Watch — The Hawaiian Volcano Observatory adapts to recent changes

November 2018. Has it already been six months since lava began flowing through Hawai‘i County's lower Puna District? Has it only been three months since activity at fissure 8 ended rather abruptly?

Date published: November 8, 2018

Volcano Watch — A summit collapse 150 years ago had similarities to the 2018 collapse

The prolonged yet dramatic partial collapse of Kīlauea caldera this past summer was the first to be observed in detail and the largest measured by subsidence volume of more than a dozen summit collapses in the past 200 years. The earliest known collapses (1823, 1832, and 1840) were large in subsidence volume but the process was not recorded by witnesses.

Date published: November 1, 2018

Volcano Watch — How are lava-flow maps made during an eruption?

During Kīlauea Volcano's recent lower East Rift Zone (LERZ) eruption, lava-flow maps were a staple of the public outreach effort by the USGS Hawaiian Volcano Observatory (HVO).

Date published: October 25, 2018

Volcano Watch — Kīlauea 2018 events mark a watershed for volcano science

The 2018 summit collapse and lower East Rift Zone eruption at Kīlauea Volcano were dramatic and, for many Island of Hawai‘i residents, tragic events. As with all eruptive crises, these events offered exceptional opportunities to learn more about how volcanoes work and to answer some "bigger picture" questions.

Date published: October 25, 2018

Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes

The U.S. Geological Survey assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people, property and infrastructure to harm during an eruption. The findings are in the newly published 2018 Update to the U.S. Geological Survey National Volcanic Threat Assessment.