Volcano Hazards Program Office

Publications

Filter Total Items: 2,114
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Year Published: 2019

Temporal variations in scrubbing of magmatic gases at the summit of Kīlauea Volcano, Hawai‘i

Measurements of gas compositions and emission rates play a major role in monitoring restless volcanoes. However, thermodynamic calculations imply that scrubbing by groundwater will prevent most HCl and significant SO2 emissions until dry pathways are established, thus leading to underestimates of gas released from magma and magma volumes. Despite...

Hurwitz, Shaul; Anderson, Kyle R.

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Year Published: 2019

Direct measurements of copper speciation in basaltic glasses: Understanding the relative roles of sulfur and oxygen in copper complexation in melts

Micro-analytical determination of copper (Cu) speciation in natural magmatic glasses, equilibrated below the nickel – nickel oxide (NNO) buffer, reveals that two copper species are commonly stabilized in such basaltic melts. X-ray absorption fine structure (XAFS) spectroscopic analysis of basaltic matrix glasses and melt inclusions (MI) from...

Lanzirotti, Antonio; Lee, R. Lopaka; Head, Elisabet; Sutton, Stephen R; Newville, Matthew; McCanta, Molly; Lerner, Allan; Wallace, Paul J.

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Year Published: 2019

The emissions of CO2 and other volatiles from the world’s subaerial volcanoes

Volcanoes are the main pathway to the surface for volatiles that are stored within the Earth. Carbon dioxide (CO2) is of particular interest because of its potential for climate forcing. Understanding the balance of CO2 that is transferred from the Earth’s surface to the Earth’s interior, hinges on accurate quantification of the long-term...

Tobias P. Fischer; Santiago Arellano; Simon Carn; Alessandro Aiuppa; Bo Galle; Patrick Allard; Taryn Lopez; Hiroshi Shinohara; Kelly, Peter J.; Cynthia Werner; Carlo Cardelini; Giovanni Chiodini

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Year Published: 2019

The tangled tale of Kīlauea’s 2018 eruption as told by geochemical monitoring

Changes in magma chemistry that affect eruptive behavior occur during many volcanic eruptions, but typical analytical techniques are too slow to contribute to hazard monitoring. We used rapid energy-dispersive X-ray fluorescence analysis to measure diagnostic elements in lava samples within a few hours of collection during the 2018 Kīlauea...

Gansecki, Cheryl; Lee, R. Lopaka; Shea, Tom; Lundblad, Steven P.; Hon, Ken; Parcheta, Carolyn E.

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Year Published: 2019

Tradition and science chronicle Pele's unyielding power

No abstract available.

Kauahikaua, James P.

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Year Published: 2019

Field trip guide to Mount St. Helens, Washington—Recent and ancient volcaniclastic processes and deposits

This field guide explores volcanic effusions, sediments, and landforms at Mount St. Helens in Washington. A detailed synopsis outlines the eruptive history of Mount St. Helens from about 300,000 years ago through 1980 and beyond.The five days in the field include about 28 stops and 12 potential stops. Exposures in valleys surrounding Mount St....

Waitt, Richard B.; Major, Jon J.; Hoblitt, Richard P.; Van Eaton, Alexa R.; Clynne, Michael A.
Waitt, R.B., Major, J.J., Hoblitt, R.P., Van Eaton, A.R., and Clynne, M.A., 2019, Field trip guide to Mount St. Helens, Washington—Recent and ancient volcaniclastic processes and deposits: U.S. Geological Survey Scientific Investigations Report 2017–5022–E, 68 p., https://doi.org/10.3133/sir20175022E.

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Year Published: 2019

Yellowstone Volcano Observatory 2017 annual report

The Yellowstone Volcano Observatory (YVO) monitors volcanic and hydrothermal activity associated with the Yellowstone magmatic system, conducts research into magmatic processes occurring beneath Yellowstone Caldera, and issues timely warnings and guidance related to potential future geologic hazards. This report summarizes the activities and...

Yellowstone Volcano Observatory, 2019, Yellowstone Volcano Observatory 2017 annual report: U.S. Geological Survey Circular 1456, 37 p., https://doi.org/10.3133/cir1456.

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Year Published: 2019

The lava flow that came to Hilo—The 1880–81 eruption of Mauna Loa volcano, Island of Hawai‘i

The Mauna Loa eruption sequence of 1880–81 consists of two eruptions. The May 1880 eruption in Mokuʻāweoweo at the summit of Mauna Loa lasted just a few days and was followed 6 months later by three lava flows that issued from vents along the Northeast Rift Zone. The November 1880 eruption lasted almost a year and one of its flows nearly reached...

Kauahikaua, James P.; Gaddis, Ben; Kanahele, Ku`ulei; Hon, Ken; Wasser, Valerie
Kauahikaua, J., Gaddis, B., Kanahele, K., Hon, K., and Wasser, V., 2019, The lava flow that came to Hilo—The 1880–81 eruption of Mauna Loa volcano, Island of Hawai‘i: U.S. Geological Survey Scientific Investigations Report 2019–5129, 35 p., https://doi.org/10.3133/sir20195129.

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Year Published: 2019

Eruption age and duration of the ~9 km3 Burney Mountain dacite dome complex, northern California

At ~9 km3, the six dacite domes of Burney Mountain (db1–db6) constitute the most voluminous Quaternary dome complex in the Cascades volcanic arc. Whole-rock geochemistry, electron microprobe, and petrographic data indicate that the domes are magmatically related, which, when integrated with geomorphology and stratigraphy, indicate early (db1, db2...

Downs, Drew T.; Clynne, Michael A.; Champion, Duane E.; Muffler, L. J. Patrick

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Year Published: 2019

Mechanics of inflationary deformation during Caldera collapse: Evidence from the 2018 Kīlauea Eruption

During the 2018 Kilauea eruption the caldera ffloor dropped 500 meters in 62 nearly periodic events of up to 8 meters. Caldera collapse maintains pressure in the magma reservoir necessary to sustain high-rate eruptions. The 2018 collapses were accompanied by inflationary tilts and displacements, similar to observations at other basaltic calderas....

Paul Segall; Anderson, Kyle R.; Johanson, Ingrid; Miklius, Asta

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Year Published: 2019

A process-based model of pre-eruption seismicity patterns and its use for eruption forecasting at dormant stratovolcanoes

Using long-term data sets, the eruptive size, timing and style can typically be successfully forecast for dormant volcanoes using current monitoring data and knowledge of precursory eruptive patterns. The USAID-USGS Volcano Disaster Assistance Program (VDAP) utilizes seismic data over multiple eruption cycles and across volcano types to...

White, Randall A.; McCausland, Wendy A.

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Year Published: 2019

3-D seismic tomographic study of Sinabung Volcano, Northern Sumatra, Indonesia, during the inter-eruptive period October 2010-July 2013

We estimated 3D P-wave velocity (Vp), S-wave velocity (Vs), and Vp/Vs tomographic structures in and around the Sinabung Volcano area, Northern Sumatra, Indonesia during the intereruptive period between October 2010 and July 2013 using high-quality P- and S-wave phases from > 600 local volcano tectonic (VT) earthquakes and more than 5000 phase...

Indrastuti, Novianti; Nugraha, Andri Dian; McCausland, Wendy A.; Hendrasto, Mohammad; Gunawan, Hendra; Kusnandar, Ridwan; Kasbani, K.; Kristianto