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Filters: Tags: {"scheme":"Common geographic areas"} (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: Volcano Science Center (X) > Types: OGC WMS Service (X)

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La Soufrière Volcano is a 1,220 m high stratovolcano that occupies the northern half of the island of St. Vincent, Lesser Antilles, Eastern Caribbean. It has a long history of explosive and sometimes devastating eruptions. Beginning in December 2020 and ending in April 2021, La Soufrière Volcano produced a Volcano Explosivity Index (VEI) 4 eruption that greatly impacted the landscape, communities, and infrastructure on the island of St. Vincent. The eruption produced intense ash plumes, heavy ashfall, and pyroclastic flows down several river valleys. During and following the eruption, destructive lahars (volcanic mudflows) impacted rivers valleys and coastal communities for months. The USGS-USAID Volcano Disaster...
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The youngest and largest island in the State of Hawaii—the Island of Hawai‘i—is formed by five volcanoes, three of which have erupted within recent geologic history: Mauna Loa, Kīlauea, and Hualālai. This data release provides a chronology for activity and impacts at Mauna Loa, Kīlauea, and Hualālai over approximately the past two and a half centuries. This data release includes a word document, “HI_volcanoes_chronology_description,” that describes the data compilation process and provides simple summary tables of eruptive activity and maps. A CSV file contains the compiled eruption chronology data for all volcanoes—"HI_volcanoes_chronology_data”—references for which are provided in a separate CSV file titled “HI_volcanoes_chronology_references.”...
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Following the 2018 collapses of the caldera floor at the summit of Kīlauea Volcano (Anderson and others, 2019; Neal and others, 2019), the enlarged and deepened depression hosted a variety of volcanic activity between 2019 and 2022. These events included an unprecedented water lake and two prolonged episodes of lava lake activity. This data release includes images from a stationary thermal camera poised on the western caldera rim, with the camera providing a continuous record of the summit changes over this period. The thermal images provide an excellent observational record of the activity owing to the ability to see through thick volcanic fume, and the clarity with which they highlight active portions of the...
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This data release includes documentation of rock core recovered from three shallow holes drilled during the summer of 2000 into the flanks of Mauna Loa volcano, on the Island of Hawai‘i, Hawaii. Holes were drilled to accommodate installation of U.S. Geological Survey Hawaiian Volcano Observatory volcano-monitoring instruments in the year 2000. Rock core recovered from the holes, which extend 112–119 m (367–392 ft) below the ground surface, were logged to characterize the sub-surface local geology. Core are described by depth below the ground surface, lithologic unit type and class, phenocryst type and abundance, groundmass type, vesicle abundance, morphology, and distribution, alteration, fracturing, and unit contacts....
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Alamagan Volcano is a Quaternary stratovolcano along the Mariana Arc, an active subduction zone in the western Pacific Ocean. Although primarily submerged, its peak reaches above sea level, with subaerially-exposed volcanic deposits dating back through the Holocene to the late Pleistocene. These feature data represent such deposits and other geologic features of Alamagan Volcano, describing its interpreted eruptive history.
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These data are derived from the Pleistocene Sacarosa tephra-fall deposit (TFD) which erupted from Misti volcano, Arequipa, southern Peru. The deposit represents a major eruption of Misti and these data are used to characterize the deposit. The radiocarbon ages are from units bracketing the Sacarosa TFD and constrain its eruption age. Whole-rock major and trace element concentrations for Sacarosa pumice were determined by X-ray flourescence and inductively coupled plasma mass spectrometry. Density was measured for 89 pumice from six bulk samples of the Sacarosa TFD. These data are provided as part of an effort to characterize the Sacarosa TFD and determine its eruption age.
    map background search result map search result map Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Thermal camera data for the summit of Kīlauea Volcano, 2019–2022 Core logs from three shallow holes drilled in summer 2000 into the flanks of Mauna Loa volcano, Island of Hawai‘i, Hawaii Chronology of recent volcanic activity on the Island of Hawai‘i, Hawaii Radiocarbon ages, whole-rock geochemical data, and pumice density measurements for the Sacarosa tephra-fall deposit, Misti volcano, southern Peru Airborne lidar survey of St Vincent, Eastern Caribbean, following the 2020-21 eruption of La Soufrière Volcano Thermal camera data for the summit of Kīlauea Volcano, 2019–2022 Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Airborne lidar survey of St Vincent, Eastern Caribbean, following the 2020-21 eruption of La Soufrière Volcano Radiocarbon ages, whole-rock geochemical data, and pumice density measurements for the Sacarosa tephra-fall deposit, Misti volcano, southern Peru Core logs from three shallow holes drilled in summer 2000 into the flanks of Mauna Loa volcano, Island of Hawai‘i, Hawaii Chronology of recent volcanic activity on the Island of Hawai‘i, Hawaii