Data

While the timing and composition of the Yellowstone Plateau volcanic field’s caldera-forming tuffs and rhyolite flows are well-characterized, the chronology of smaller-volume mafic eruptions is poorly known, thereby limiting our understanding of how mafic magmatism drives rhyolite volcanism, particularly Yellowstone’s large caldera-forming eruptions. To address this gap in knowledge, we...

At least 28 rhyolitic lava flows, domes, and tuffs erupted within Yellowstone caldera following its formation 631 ka. Understanding the timing of intracaldera eruptions is essential for characterizing natural hazards posed by Yellowstone volcano. We present 40Ar/39Ar eruption ages for the Mallard Lake Member and Central Plateau Member of the Plateau Rhyolite, which comprise products from...

Volcanic mass flows, especially lahars and pyroclastic density currents (PDCs) are among the most destructive volcanic hazards due to their speed, mobility, and the often-unexpected behavior these flows exhibit as they interact with topography. Mitigation of risk associated with PDCs and other volcanic mass flows depends upon accurate forecasting of magnitude and frequency, potential...

This release includes data collected during campaign GNSS surveys at Kīlauea and Mauna Loa on the Island of Hawaiʻi in 2022. It includes data from a total of 63 sites occupied from January 1 to December 31, 2022. For each site, we include its measured raw data in daily files, Receiver INdependent EXchange (RINEX) files for each day, field log sheet(s), and associated metadata information...

The Cleveland Corral landslide complex located near U.S. Highway 50 in El Dorado County, California is episodically active. This USGS data release presents graphical and tabular data from near real-time monitoring of the Cleveland Corral landslide conducted between 1997 and 2018. The monitoring data include 15-minute and daily measurements (in separate files) for four types of sensors on...

The surface elevation of lava lakes is an important parameter that can provide insight on the underlying magma reservoir pressure as well as outgassing dynamics of the magmatic system (Patrick and others 2019a). Lava lake elevation may also be useful in forecasting potentially hazardous eruptions on a volcano’s flanks (Burgi and others 2014; Patrick and others 2015, 2020). Precise...

The data include video record segments for a period of ~3.5 hours beginning 2016/05/03 at approximately the beginning of the universal time day. Each video record documents 10 active source explosions from three video cameras (30 total video segments). The data are part of an assessment of directed blast dynamics on a surrounding acoustic sensor array. The acoustic data is part of an...

This data release includes measurements of properties from sedimentary cores collected from Henrys Lake in Idaho. We present a CSV with basic information about the cores (e.g., length, collection location, water depth), and three CSVs with the fallout radionuclide (FRN), particle size analysis (PSA), and radiocarbon (RC) data. It also has three child items with x-ray computed tomography...

The catastrophic, explosive eruption of Mount St. Helens, Washington, on May 18, 1980, is the most well-known eruption of the volcano. Less well known is the May 18 eruption marked the beginning of a period of eruptive activity that lasted through 1986. Beginning in October 1980, a series of 17 dome-building episodes added millions of cubic meters of lava to the crater floor. Most of the...

Catalog datasets in support of publication, "A Decade of Precursory Seismicity at Mauna Loa: 2013-2022". The earthquake catalogs begin April 1, 2009 and extend to January 1, 2023. The entire dataset has been generated with the ANSS Quake Management System (AQMS), which has the real-time software package Earthworm at its core. Automated and reviewed locations use the Hypoinverse location...

Kīlauea Volcano on the Island of Hawai‘i was in a state of nearly continuous eruption from 1983 - 2018. Large amounts of sulfur dioxide gas (SO2) were released from the volcano’s East Rift Zone (ERZ) during the entire eruptive period, and from the Overlook vent at the summit of the volcano from 2008-2018. This data release presents ground-based estimates of SO2 emission rates from the...

The Yellowstone Plateau volcanic field and surrounding region is made up of over 3 billion years of geologic history, with 300+ separate rock types. To increase our understanding of the evolution of this active system and direct priorities for sample collection and field study, we compiled whole rock geochemical datasets from numerous thesis and papers (17 in total). We present these...