Data
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Isotopic compositions (Sr, Nd, Hf, Pb) of Quaternary volcanic rocks of northern Harrat Rahat, Kingdom of Saudi Arabia Isotopic compositions (Sr, Nd, Hf, Pb) of Quaternary volcanic rocks of northern Harrat Rahat, Kingdom of Saudi Arabia
Isotopic compositions (87Sr/86Sr, 143Nd/144Nd, 176Hf/177Hf, 206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb) and major oxide and trace element concentrations of Quaternary basalts, hawaiites, mugearites, benmoreites, and trachytes from northern Harrat Rahat, Kingdom of Saudi Arabia.
Chemical and isotopic compositions of gases from volcanic and geothermal areas in California Chemical and isotopic compositions of gases from volcanic and geothermal areas in California
Gas chemical and isotopic compositions are reported for samples collected from 9 volcanic and geothermal areas in California: Medicine Lake Volcano, Mount Shasta, Lassen Volcanic Center, Clear Lake Volcanic Field, Mono Lake Volcanic Field, Long Valley Caldera, Mammoth Mountain, Coso Volcanic Field, and Salton Sea Geothermal Field. Beginning in 2014, gas samples were collected as part of...
Carbon dioxide flux measurements at and adjacent to the Sulphur Bank Mercury Mine, Clear Lake Volcanic Field, California Carbon dioxide flux measurements at and adjacent to the Sulphur Bank Mercury Mine, Clear Lake Volcanic Field, California
The 2.1 Ma Clear Lake Volcanic Field (Donnelly-Nolan and others, 1981) and the 174 km2 Clear Lake are located ~150 km north of San Francisco, California. Sulphur Bank Mercury Mine (SBMM) is an abandoned mine located on the eastern shore of Clear Lake that was initially worked in 1865 for sulfur, then for mercury until it closed in 1957 (White and Roberson, 1962). The mine was declared a...
Update of the Database for Volcanic Processes and Geology of Augustine Volcano, Alaska to National Geologic Map Schema Update of the Database for Volcanic Processes and Geology of Augustine Volcano, Alaska to National Geologic Map Schema
The geologic map database in this data release is a reproduction of the U.S. Geological Survey Professional Paper 1762: Volcanic Processes and Geology of Augustine Volcano, Alaska, Waitt and Begét (2009). The database consists of a geologic map and one structural cross section that conform to the National Geologic Map Schema (GeMS). These data supersede USGS Data Series 677: Database for...
Major element chemistry of water from Old Faithful Geyser and the Firehole River, Upper Geyser Basin, Yellowstone National Park Major element chemistry of water from Old Faithful Geyser and the Firehole River, Upper Geyser Basin, Yellowstone National Park
Between April and August 2009 four water samples were collected from the outflow channel of Old Faithful Geyser in the Upper Geyser Bain, Yellowstone National Park. The samples were collected during the main phase of the eruptions when water flow was at maximum rate. In addition, two samples of stream flow were collected in November 2016 from the Firehole River near the U.S. Geological...
Whole rock and micro-analytical geochemistry of minerals, melt inclusions, and matrix glasses from Kapoho Crater and Puʻulena Crater, Kīlauea Volcano, Hawaiʻi Whole rock and micro-analytical geochemistry of minerals, melt inclusions, and matrix glasses from Kapoho Crater and Puʻulena Crater, Kīlauea Volcano, Hawaiʻi
Kilauea volcano (Hawaii, USA) is a shield volcano that exhibits both effusive and explosive eruptive activity. Although Kilauea has been predominantly built through effusive eruptions, explosive eruptions have occurred repeatedly at both Kilauea's summit and in the volcano's lower East Rift Zone (Moore, 1992; Swanson et al., 2014). This dataset presents geochemical analyses of samples...
Trained emulators from the spheroid90gp software package Trained emulators from the spheroid90gp software package
This data release contains materials related to the spheroid90gp software package, including pre-trained Gaussian Process emulators and model input files. The emulators predict cavity compressibility and surface displacements produced by pressure changes in a vertical spheroidal cavity embedded in an elastic halfspace. The methodology is documented in a journal publication (...
National Volcanic Threat Layer National Volcanic Threat Layer
There are 161 active volcanoes in the U.S. and its territories. These volcanoes pose differing degrees of risk to people and infrastructure because of differences in their eruptive styles and geographic locations. This layer shows the areas near volcanic vents that could be affected by proximal volcano hazards, including ballistics (airborne rocks from explosions), pyroclastic density...
Lava fountain heights and associated timelapse images during the 2018 lower East Rift Zone eruption of Kīlauea volcano, Island of Hawaiʻi Lava fountain heights and associated timelapse images during the 2018 lower East Rift Zone eruption of Kīlauea volcano, Island of Hawaiʻi
The 2018 eruption from the lower East Rift Zone of Kīlauea volcano, on the Island of Hawaiʻi, was one of the most significant and destructive events on the volcano in the past 200 years (Neal and others, 2019; Patrick and others, 2020; Anderson and others, 2023; Mulliken and others, 2024). Between May and September of that year, 24 fissures opened on the lower flank of the volcano...
Plumeria Simulations of 20 December 2020 Kīlauea Volcano Eruption Plume Plumeria Simulations of 20 December 2020 Kīlauea Volcano Eruption Plume
This data release contains results of model simulations of a plume at Kilauea volcano that occurred on 20 December 2020. The ash-poor plume was produced when lava flowed into a water lake at the summit of Kilauea volcano. Simulations were conducted to constrain the conditions under which the plume rose to its observed height. The analysis and results are described in the accompanying...
Sulfur dioxide emission rates from Hawaiian volcanoes, 2018-2022 Sulfur dioxide emission rates from Hawaiian volcanoes, 2018-2022
Measurement of sulfur dioxide (SO2) emission rates is a critical aspect of monitoring and studying active volcanoes. Changes in emission rate are often associated with changes in volcanic activity and in some cases may herald future changes in activity. At the Hawaiian Volcano Observatory (HVO), emission rates of SO2 from Hawaiian volcanoes have been measured by ultraviolet spectrometer...
Stochastic lava flow forecasting code used during the 2014-2015 Pāhoa lava flow crisis, Kīlauea Volcano, Island of Hawai‘i Stochastic lava flow forecasting code used during the 2014-2015 Pāhoa lava flow crisis, Kīlauea Volcano, Island of Hawai‘i
The 1983-2018 Puʻuʻōʻō eruption, on the East Rift Zone of Kīlauea volcano, consisted of many different episodes and several phases of lava flows threatening residential areas (Heliker and Mattox 2003; Orr and others 2015). One of these crises occurred in 2014-2015, when lava erupting from Puʻuʻōʻō advanced north of the rift zone, towards the town of Pāhoa (Poland and others 2016...