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Water Levels Between March 2002 and May 2011 periodic water level measurements were made in the well on the summit of Kīlauea Volcano using a 2,000-foot calibrated electric tape (Waterline Envirotech Ltd.) with graduations of 0.01 foot. Water level measurements resumed in March 2018. Calibration of the electric tape at the USGS Hydrologic Instrumentation Facility (HIF) in November 2018 revealed a displacement of 0.29 feet over 1,980 feet of the electric tape. We therefore estimate that the accuracy of the water level measurements is 0.3 foot (±9 cm). Water level measurements were referenced to the top of the wellhead, located at 1103 meters above sea level at the time of drilling in 1973. Categories: Data; Tags: Hawaii Volcanoes National Park, Kilauea volcano, water depth 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 paper: Cahalan RC, Mastin L, Van Eaton A, Hurwitz S, Smith AB, Dufek J, Solovitz SA, Patrick M, Schmith J, Parcheta C, Thelen W, Downs DT (2023 (in press)) Dynamics of the December 2020 ash-poor plume formed by lava-water interaction at the summit of Kīlauea Volcano, Hawaiʻi. Geochemistry, Geophysics, Geosystems. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Kilauea volcano, Kilauea volcano, USGS Science Data Catalog (SDC), Volcanology, biota, All tags... plume modeling, plume modeling, volcanic hazards, volcanic hazards, volcanic plume, volcanic plume, Fewer tags Keanakākoʻi Tephra unit D, Kīlauea Volcano, Hawaii: sample details, grain size, and grain shape data for 100 tephra samples A total of 100 samples were collected from two proximal sections of Keanakākoʻi, Tephra unit D deposits. Samples were analyzed on Microtrac CAMSIZER® P4 and X2 instruments for grain size and shape data in the USGS Hawaiian Volcano Observatory (HVO) tephra lab. Data release includes sample descriptions, half phi grain size distributions, and statistical output from DECOLOG deconvolution modeling of grain size distributions. Grain size is reported using the sieve compatible Xcmin parameter (CAMSIZER® manual, 2020). Data of 2D shape parameter means of sphericity, Krumbein roundness and compactness of samples as well as for half phi grain size bins at 4, 3, 2, 1, 0, and -1 phi are also included. Please refer to associated... Categories: Data; Tags: Camsizer, Grain shape, Grain size, Hawaii Volcanoes National Park, Kīlauea Volcano, All tags... Kīlauea summit, Magma-water interaction, Phreatomagmatic, Sample information, Shape parameter, Tephra, Tephra deposit, USGS Science Data Catalog (SDC), Volcanic ash, Volcanic ash, Volcanology, geoscientificInformation, grain-size analysis, volcanic rocks, volcanology, Fewer tags Water chemistry and isotope data Chemistry and Isotope Data Sample Collection: Water samples were collected from approximately 100 feet (30 meters) below the water table using either a 4 foot or 6 foot long stainless-steel bailers with an inner diameter of 0.5 in. Samples for anion concentration measurements were poured into 60 ml polypropylene bottles through 0.45mm pore-diameter filter. Raw (unfiltered, unpreserved) samples for oxygen-18 and deuterium isotope analyses were stored in 30 ml glass bottles. Sample Analyses: The concentrations of sulfate (SO42-), chloride (Cl-), and fluoride (F-) in samples collected until October 2003 were determined with a Dionex DX-300 ion chromatograph, and since October 2003 with a Dionex ICS-2000 ion chromatograph... Categories: Data; Tags: Hawaii Volcanoes National Park, Kilauea volcano, water chemistry, water isotopes Campaign GPS measurements on the Island of Hawai`i collected by the Hawaiian Volcano Observatory in 2020 This dataset includes raw and rinex data from 2020 campaign gps data from the Island of Hawai`i in 2020. There was a total of 57 sites occupied. All data are included along with metadata, log sheets and raw/rinex data. Categories: Data; Tags: Field inventory and monitoring, Geodesy, Geophysics, Geophysics, Hawaiʻi Volcanoes National Park, All tags... Island of Hawaiʻi, Kīlauea Volcano, Mauna Loa Volcano, Remote Sensing, USGS Science Data Catalog (SDC), Volcanic Activity, Volcanology, Fewer tags Temperature Logs High-resolution (plus or minus (±) 0.1°C) temperature measurements were accomplished with a platinum resistance temperature (PRT) probe. The PRT probe, suspended from an armored logging cable, was lowered into the well over a sheave with a portable hand-cranked reel. Attached to the sheave were both mechanical and digital depth counters. The PRT output and digital depth counter were connected to an electronic data logger programmed to display and record the temperature and depth values at 5-second intervals. The temperature logs were conducted from the top of the water column downward at 10 foot increments so that the established thermal equilibrium of the water column was least disturbed by logging. Once the target... Categories: Data; Tags: Hawaii Volcanoes National Park, Kilauea volcano, temperature Volcanic plume heights from the summit of Kīlauea Volcano, Hawai'i This data release provides volcanic plume heights from the summit of Kīlauea Volcano for 2008-2015, and during the eruptive events of 2018. For 2018, a Secacam Wild Vision Full HD camera with a 7mm focal length was located at 1717 m elevation approximately 15 m south of the Mauna Loa Strip Road within Hawaiʻi Volcanoes National Park, 19.475843°N, 155.363560°W (WGS84). The camera was pointed southeast to capture images of the Kīlauea caldera every two minutes. These images were used to calculate maximum plume heights within the full frame of the camera. For each two-minute image, the maximum plume heights above the Halemaʻumaʻu crater rim, and in the overall image, were calculated using the horizontal distance to... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Halema‘uma‘u, Kīlauea Crater, Kīlauea Volcano, USGS Science Data Catalog (SDC), eruption plume, All tags... none, plume height, Fewer tags Preliminary map of the 2018 lower East Rift Zone eruption of Kīlauea Volcano, Island of Hawai‘i This web map service is updated as data is available to show ongoing developments of the 2018 lower East Rift Zone eruption of Kīlauea Volcano, Island of Hawai‘i. These data are preliminary and represent estimated locations for lava flow boundaries, eruptive fissures, and noneruptive ground cracks shown as polygons, lines, and points, respectively. Also included are historic Kīlauea lava flows from 1840, 1955, 1960, and 2014-2015 as purple shaded areas, and paths of steepest decent in blue. The web service can be found at https://www.sciencebase.gov/catalog/item/5afe0ba7e4b0da30c1bdb9db and https://gis.usgs.gov/sciencebase2/rest/services/Catalog/5afe0ba7e4b0da30c1bdb9db/MapServer. Users may download the source... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Hawaii, Kapoho, Kīlauea Volcano, Kīlauea Volcano, Leilani Estates, All tags... Leilani Estates, Opihikao, Pohoiki, eruption, eruptive fissure, ground crack, lava flow, lower East Rift Zone, lower East Rift Zone, lower Puna District, lower Puna District, volcanic activity, volcanic rocks, Fewer tags Campaign GPS measurements on the Island of Hawaiʻi collected by the Hawaiian Volcano Observatory in 2021 This release includes data collected during campaign GPS surveys at Kīlauea and Mauna Loa Volcanoes on the Island of Hawaiʻi in 2021. It includes data from a total of 63 sites occupied from January 1 to December 31, 2021. 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. We also include a few days of data at the end of 2020 at 3 longer-term campaign sites at Kīlauea’s summit. These sites (109Y, NDDB, OVRL) were deployed in late December 2020 in response to the December 20, 2020, Kīlauea summit eruption. The authors thank USGS Hawaiian Volcano Observatory staff, volunteers, and collaborators... Categories: Data; Tags: Field inventory and monitoring, Geodesy, Geophysics, Geophysics, Hawaiʻi Volcanoes National Park, All tags... Island of Hawaiʻi, Kīlauea Volcano, Mauna Loa Volcano, USGS Science Data Catalog (SDC), Volcanic Activity, Volcanology, biota, Fewer tags Campaign GPS measurements on the Island of Hawai`i collected by the Hawaiian Volcano Observatory in 2019 This dataset includes raw and rinex data from 2019 campaign gps data from the Island of Hawai`i in 2019. There were a total of 69 sites occupied. All data is included along with metadata, log sheets and raw/rinex data. Categories: Data; Tags: Field inventory and monitoring, Geodesy, Geophysics, Geophysics, Hawaiʻi Volcanoes National Park, All tags... Island of Hawaiʻi, Kīlauea Volcano, Mauna Loa Volcano, Remote Sensing, USGS Science Data Catalog (SDC), Volcanic Activity, Volcanology, Fewer tags SO2 emission rates from Kilauea Volcano, Hawaii (2014-2017) This report documents the SO2 emission rates for the period 2014-2017, from the summit and East Rift Zone eruptions of Kīlauea, along with the wind or plume speed and direction data used to calculate the emission rates. The Kīlauea summit SO2 emission rates are reported every ten seconds, as measured by a novel configuration of 10 fixed, upward looking UV spectrometers (FLYSPEC array), and for days with at least 2 hours of data, the daily means are reported. The plume or wind speeds used to calculate the emission rates are measured by cross correlation of plume features (see William-Jones and others (2006)) or by ground-based anemometer (SDH) and are reported with the emission rates. When the SDH ground based wind... Categories: Data; Tags: FLYSPEC array, Halema'uma'u, Kilauea Crater, Kilauea East Rift Zone, Kilauea volcano, All tags... Overlook vent, Pu’u’O’o, SO2 emission rate, USGS Science Data Catalog (SDC), UV spectroscopy, Volcanology, Fewer tags Tiltmeter data from Kīlauea Volcano, Hawaii, spanning the 2018 eruption and earthquake sequence Data collected by 11 borehole tiltmeters operated by the U.S. Geological Survey on Kīlauea Volcano, on the Island of Hawai'i. Data was collected between 30 April, 2018 and 5 August, 2018. Among the features captured by this data set are: the collapse of Puʻuʻōʻō on 30 April, 2018, the migration of magma down the East Rift Zone from 30 April to 3 May, 2018, the M6.9 earthquake on 4 May, 2018, and the deflation and collapse of the shallow magma chamber at Kīlauea from early May until 5 August, 2018. Data files for each station are zipped together into a single archive, which also includes a ReadMe.txt explanatory file. Zip archives are named with the three-letter station code that uniquely identifies the tiltmeter... Categories: Data; Tags: Geophysics, Kaʻena Point, Kīlauea Volcano, Puʻuʻōʻō, Seismology, All tags... USGS Science Data Catalog (SDC), Uēkahuna Bluff, Volcanology, earthquakes, field inventory and monitoring, geodesy, time series datasets, volcanic activity, Fewer tags Sulfur dioxide emission rates from Kīlauea Volcano, Hawaii, 2008-2013 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 two gas emission sources for the period 2008-2013. For the two-year period 2008-2010, the summit data have been revised from previously published emission rates (Elias and Sutton, 2012). During this era, very high emissions from the volcano’s newly active lava lake led to opaque plumes and challenges in accurately quantifying SO2 column... Categories: Data; Tags: FLYSPEC array, Halema'uma'u, Kilauea Crater, Kilauea East Rift Zone, Kilauea Volcano, All tags... Overlook vent, Pu’u’O’o, USGS Science Data Catalog (SDC), UV spectroscopy, Volcanology, sulfur dioxide emission rate, Fewer tags