Volcano Hazards Program

U.S. Geological Survey
Open-File Report 2007-1223
Version 1.0

Digital Data for Volcano Hazards in the Crater Lake Region, Oregon

By S.P. Schilling, S. Doelger, C.R. Bacon, L.G. Mastin, K.E. Scott, and M. Nathenson

2008


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These digital GIS layers were compiled with ArcInfo software. The files are volcano hazard map data available as ArcInfo coverages and shapefiles. ArcInfo-compatible GIS software is required to use the files. The files are stored in a single zipped folder (crater_lake_coverages.zip or crater_lake_shapefiles.zip) in this release for ease of transfer. The scale of the source map limits the spatial resolution (scale) of the files to 1:100,000 or smaller. Available ArcInfo coverages and shapefiles are described below:

ArcInfo coverage or shapefile Description
chazpoly Proximal and Distal Volcano Hazard Zones (lines, polygons)
chazline Maximum extent of pumiceous deposits(lines)
chaz Silicic and mafic vent locations(lines)
c_faults Faults active in past few million years (lines)
cballs Location of ball symbol showing downthrown side of fault(points)

Download crater_lake_coverages.zip containing the digital files.

Download crater_lake_shapefiles.zip containing the digital files.

Federal Geographic Data Committee (FGDC) metadata are available for the digital files in text format.

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URL: https://pubs.usgs.gov/of/2007/1223/data.html
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Page Created: August 1, 2008
Page Last Modified: August 11, 2008 (ljt)