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Date published: October 18, 2018

Volcano Watch — Kīlauea hazard assessments include analyses of salts on volcanic ash

Sulfur dioxide (SO2)-rich emissions have long been a feature of Kīlauea Volcano's summit activity. However, vigorous volcanic ash production during the 2018 eruption raised new concerns about potential impacts for downwind communities.

Date published: October 11, 2018

Volcano Watch — Aftershocks of the 2018 magnitude-6.9 earthquake expected to continue

On May 4, 2018, a powerful magnitude-6.9 earthquake on the south flank of Kīlauea Volcano shook the Island of Hawai‘i. It was the largest quake in Hawaii in 43 years. Today, more than five months later, smaller-magnitude earthquakes in the same area are still occurring.

Date published: October 9, 2018

New USGS Data Release Product

Data Release: Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kīlauea Volcano, Hawaiʻi

Date published: October 4, 2018

Volcano Watch — Volcano collapses mark the beginning and end of USGS scientist’s career

My 37-year stint with the U.S. Geological Survey—16 years at the Cascades Volcano Observatory (CVO) and 21 at the Hawaiian Volcano Observatory (HVO)—ends this month.

Date published: September 27, 2018

Volcano Watch — Tiltmeters measure tiny changes that can have big consequences

The USGS Hawaiian Volcano Observatory (HVO) uses a diverse set of instruments to monitor active volcanoes in Hawaii. These include seismometers, gas sensors, Global Positioning System (GPS) stations, and webcams. Each provides a unique type of data critical to understanding volcanic systems.

Date published: September 27, 2018

Preliminary summary of Kīlauea Volcano's 2018 lower East Rift Zone eruption and summit collapse

Overview of Kīlauea Volcano's activity from April 30 through September 22, 2018.

Date published: September 20, 2018

Volcano Watch — Will this summer's limited collapse of Kīlauea caldera eventually widen?

The limited collapse of the inner part of Kīlauea Volcano's caldera this summer fell well short of the larger summit-wide collapses that occurred in the past. How many such limited collapses can we recognize at Kīlauea before written records were kept? The answer is none.

Date published: September 13, 2018

Volcano Watch — Seismic array deployed to better understand magma transport during Kīlauea's eruption

Kīlauea Volcano's 2018 lower East Rift Zone eruption and summit collapse provided a rare opportunity to study dynamic eruptive processes beneath and at the surface of the volcano.

Date published: September 6, 2018

Volcano Watch — Scientists share lessons from Kīlauea at "Cities on Volcanoes" conference

In 1902, Thomas A. Jaggar, a geologist and founder of the Hawaiian Volcano Observatory (HVO), visited the scene of one of the most deadly volcanic disasters in modern history: Mount Pelee on the Caribbean Island of Martinique.

Date published: August 30, 2018

Volcano Watch — Scientific community lends a hand to measure Kīlauea's changing shape

The USGS Hawaiian Volcano Observatory (HVO) has an extensive network of instruments that helps us monitor how the ground deforms due to magma moving underground. However, we are fortunate that scientific colleagues also pitched in to support our responses to Kīlauea Volcano's lower East Rift Zone (LERZ) eruption and summit collapse.

Date published: August 23, 2018

Volcano Watch — Voggy skies from days gone by: reviewing Kīlauea Volcano's gas release

Many Island of Hawai‘i residents are familiar with the volcanic air pollution known as "vog." The main culprit in the formation of vog is sulfur dioxide gas (SO2) released from Kīlauea's eruptions (see for more information).

Date published: August 16, 2018

Volcano Watch — Submarine Kīlauea also impacted by recent events on the volcano

The visible part of Kīlauea from the summit to the Lower East Rift Zone (LERZ) makes up only a small portion of the total volcano. Much of Kīlauea lies beneath the sea, including the Puna ridge to the east, and the south flank extending offshore beyond the southern coastline.