GIS shapefiles for lava flows at Kilauea volcano, 1790–1982
Dates
Publication Date
2018-05-18
Citation
Orr, T.R., 2018, GIS shapefiles for lava flows at Kilauea volcano, 1790–1982: U.S. Geological Survey data release, https://doi.org/10.5066/P9B7904I.
Summary
This dataset contains shapefiles and associated metadata for lava flows erupted at Kilauea volcano from ca. 1790 through 1982. The dataset includes all known subaerial eruptions in the volcano's Southwest Rift Zone and East Rift Zone, and selected flows erupted within the summit caldera, during this time period. Two attributed shapefiles are associated with each eruption: a polyline shapefile for the lava flow contacts and eruptive fissures, and a polygon shapefile showing the full extent of the lava flow after emplacement. In total, this dataset contains 100 shapefiles, each with an associated metadata .txt file, representing 50 separate eruptions. The lava flow contacts and fissures were mapped on the ground using a handheld GPS, [...]
Summary
This dataset contains shapefiles and associated metadata for lava flows erupted at Kilauea volcano from ca. 1790 through 1982. The dataset includes all known subaerial eruptions in the volcano's Southwest Rift Zone and East Rift Zone, and selected flows erupted within the summit caldera, during this time period. Two attributed shapefiles are associated with each eruption: a polyline shapefile for the lava flow contacts and eruptive fissures, and a polygon shapefile showing the full extent of the lava flow after emplacement. In total, this dataset contains 100 shapefiles, each with an associated metadata .txt file, representing 50 separate eruptions. The lava flow contacts and fissures were mapped on the ground using a handheld GPS, were digitized from satellite imagery, or were digitized from scanned and georegistered maps and aerial photographs; the relevant sources for each feature are assigned in the attribute table.
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GIS_shapefiles_for_lava_flows_at_Kilauea_volcano_1790_1982.xml Original FGDC Metadata
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Purpose
The complete dataset contains the geologic contacts, polygons and eruptive fissures for lava flow-producing eruptions of Kilauea volcano from ca. 1790 through 1982. These data differ from existing GIS products in that they show the flows at their time of emplacement, not as they are currently exposed at the ground surface. Many flows have been partly or completed buried by younger flows and are thus not represented in other GIS products. In addition, the geologic contacts have been updated, where possible, using digital imagery. Not all lava flows within the volcano's summit caldera are included because of a paucity of map resources and because much of Kilauea's documented history is characterized by nearly continuous summit activity.
On July 23, 2018 a new dataset,1974 (September) lava flow extent, was added to this collection. It had previously been excluded from the collection in error.
