Data
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Simulated lahar arrival times and maximum depths in the Middle Fork Nooksack River drainage, resulting from hypothetical landslide sources on the western summit of Mount Baker, Washington Simulated lahar arrival times and maximum depths in the Middle Fork Nooksack River drainage, resulting from hypothetical landslide sources on the western summit of Mount Baker, Washington
This data release contains postprocessed D-Claw model output, simulation configuration, and provenance information for six hypothetical lahar scenarios at Mount Baker, Washington. The modeled scenarios evaluate the influence of landslide source volume and material properties on lahar dynamics, inundation, and runout in the Middle Fork Nooksack River drainage. The numerical simulations...
Tremor detections in south-central Alaska from 2007–2015 and 2016–2018 Tremor detections in south-central Alaska from 2007–2015 and 2016–2018
This dataset contains an updated version of the catalog of tremor in south-central Alaska described in: Wech, A.G., 2016, Extending Alaska’s plate boundary—Tectonic tremor generated by Yakutat subduction: Geology, v. 44, no. 7, p. 587–590. [Also available at https://doi.org/10.1130/G37817.1.] The original catalog spans from 2007 to 2015, and the update extends tremor detection coverage...
Model simulations of volcanic ash transport from Taupo volcano (New Zealand) during the 25 ka Oruanui eruption Model simulations of volcanic ash transport from Taupo volcano (New Zealand) during the 25 ka Oruanui eruption
This data release contains model output from 640 model simulations of volcanic ash transport during the 26ka Oruanui eruption at Taupo Volcano, New Zealand. The simulations were run as part of a study (Mattin et al., in review) that reports the discovery of Oruanui ash in three ice cores in Antarctica. The simulations helped constrain the set of conditions under which particles of a...
Campaign GNSS Measurements Collected at Mount St. Helens by the Cascades Volcano Observatory Campaign GNSS Measurements Collected at Mount St. Helens by the Cascades Volcano Observatory
This data release contains data collected during campaign Global Navigation Satellite Systems (GNSS; formerly only the Global Positioning System or GPS) surveys conducted at Mount St. Helens. A survey in any given year may contain data from a subset of established sites depending on access, personnel, and the condition of the GNSS monument. For each site, we include raw data in binary or...
Braiding Index Measurements, Río Coca, Ecuador, 2012–2023 Braiding Index Measurements, Río Coca, Ecuador, 2012–2023
On February 2, 2020, the Río Coca in Ecuador undermined a basaltic-andesitic lava dam that formed the 144-meter-high San Rafael waterfall. Following the failure of the lava dam, the sudden loss of grade control prompted rapid knickpoint retreat and regressive erosion into poorly consolidated sediment, which initially migrated tens of meters upstream per day. On February 25, 2021, the...
Landslide structures, kinematic elements, and topography of the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California Landslide structures, kinematic elements, and topography of the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California
The Cleveland Corral landslide, located near U.S. Highway 50 in El Dorado County, California, is episodically active. This USGS data release contains multiple data sets of topography, mapped ground-surface structures, location of GPS monuments, horizontal displacement vectors from repeat GPS surveys, kinematic elements, and shallow landslides in the landslide area. These data were...
1:3000 and 1:3600 scale aerial photographs of the Cleveland Corral landslide located near U.S. Highway 50, El Dorado County, California, 1997, 1999, and 2007 1:3000 and 1:3600 scale aerial photographs of the Cleveland Corral landslide located near U.S. Highway 50, El Dorado County, California, 1997, 1999, and 2007
The Cleveland Corral landslide, located near U.S. Highway 50 in El Dorado County, California, is episodically active. This USGS data release contains scans of vertical aerial photographs used to map ground-surface structures and to generate multiple data sets of topography of the landslide over different years. Associated files containing topographic and landslide structural features are...
Landslide depth measurements from the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California Landslide depth measurements from the Cleveland Corral landslide near U.S. Highway 50, El Dorado County, California
Data in this document record measured depths from 1999 to 2024 in copper pipes installed within different kinematic elements of the Cleveland Corral landslide. Copper pipes with a 0.5-inch (13 mm) diameter were installed vertically, with initial installation depths selected to emplace the pipes beneath potential sliding surfaces. These copper pipes were malleable enough to be typically...
Geospatial data depicting eruptions since 2018 in the State of Hawaii Geospatial data depicting eruptions since 2018 in the State of Hawaii
The hulihia (Hawaiian for "upheaval") of 2018 represents a significant benchmark in the history of Hawaiian volcanology. Kīlauea experienced a historically damaging eruption along its lower East Rift Zone in association with the volcano’s largest summit collapse in over a century, which forced the Hawaiian Volcano Observatory to vacate its longtime post at Uēkahuna on the rim of...
Sample details and compositional data for glass grains within tephra from Hiʻonamoa Gulch, southeastern flank of Mauna Loa volcano, Island of Hawaiʻi Sample details and compositional data for glass grains within tephra from Hiʻonamoa Gulch, southeastern flank of Mauna Loa volcano, Island of Hawaiʻi
This data release reports electron probe microanalysis (EPMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) data from glass grains in tephra from Hiʻonamoa Gulch, on the southeastern flank of Mauna Loa volcano, Island of Hawaiʻi. The samples were collected from an outcrop approximately two meters thick located at latitude 19.2995 and longitude -155.57744...
Tephra data for Inyo domes, California Tephra data for Inyo domes, California
Data on tephra thicknesses for the Inyo eruptions from Miller (1985) and Bursik and Sieh (2013) are combined to produce revised isopach maps for the South Deadman vent, Obsidian Flow vent, and Glass Creek vent. Volumes are calculated for the four sets of isopachs, and the total tephra volume is calculated to be 0.21 cubic km. The Miller (1985) data are obtained from field maps and...
Physical Characteristics of Pyroclasts from the 2023 Eruption of Shishaldin Volcano, Alaska Physical Characteristics of Pyroclasts from the 2023 Eruption of Shishaldin Volcano, Alaska
This report includes analyses of physical characteristics, such as particle size distribution, density, clast dimensions, and measured area mass, for samples collected from the 2023 eruption of Shishaldin Volcano, Alaska. Reported samples include 8 samples collected by an Alaska Volcano Observatory (AVO) field team during August 20–22, 2023, 12 distal samples collected by the public...