AKvolclatlong latitudes and longitudes of volcanoes
Cameron, C.E., 2005, Latitudes and longitudes of volcanoes in Alaska: Raw Data File RDF 2005-3, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK.
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001 degree. Longitudes are given to the nearest 0.000001 degree. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.400000.
The flattening of the ellipsoid used is 1/294.978698.
Any integer, assigned randomly by database
Volcano names: short, most commonly used name of a volcanic center
A "1" in this field indicates the volcano has been historically active. All other values indicate no confirmed historical activity.
|Range of values|
|Range of values|
This dataset was created as part of the Alaska Volcano Observatory's Geological Database of Information on Volcanoes in Alaska (GeoDIVA) project.
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To provide an authoritative file of volcano locations
Miller, T.P., McGimsey, R.G., Richter, D.H., Riehle, J.R., Nye, C.J., Yount, M.E., and Dumoulin, J.A., 1998, Catalog of the historically active volcanoes of Alaska: Open-File Report OF 98-582, U.S. Geological Survey, Anchorage, AK.
Schaefer, Janet, and Nye, C.J., 2002, Historically active volcanoes of the Aleutian Arc: Miscellaneous Publication MP 123, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK.
Wood, C.A. (ed.), and Kienle, Juergen (ed.), 1990, Volcanoes of North America: United States and Canada: Cambridge University Press, New York, NY.
Simkin, Tom, and Siebert, Lee, 1994, Volcanoes of the world: Geoscience Press, Tuscon, AZ.
Motyka, R.J., Liss, S.A., Nye, C.J., and Moorman, M.A., 1993, Geothermal resources of the Aleutian Arc: Professional Report PR 114, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK.
Reed, B.L., Lanphere, M.A., and Miller, T.P., 1992, Double Glacier Volcano, a "new" Quaternary volcano in the eastern Aleutian volcanic arc: Bulletin of Volcanology v. 54, n. 8.
Hildreth, W., Fierstein, J., Lanphere, M.A., and Siems, D.F., 1999, Alagogshak volcano: a Pleistocene adesite-dacite stratovolcano in Katmai National Park: Professional Paper PP 1614, U.S. Geological Survey, Reston, VA.
Hildreth, Wes, Fierstein, Judy, Siems, D.F., Budahn, J.R., and Ruiz, Joaquin, 2004, Rear-arc vs. arc-front volcanoes in the Katmai reach of the Alaska Peninsula: a critical appraisial of across-arc compositional variation: Contributions to Mineralogy and Petrology v. 147, n. 3.
Data sources used in this process:
The attributes of this geospatial dataset consist of text identifiers and numeric codes that indicate the name, latitude, and longitude of Alaska volcanoes younger than 2 million years. Volcanoes that have been active during historic time (as described in Miller and others, 1998, Catalog of Historically Active Volcanoes) are attributed with a "1" in the "Historical" column. To check attribute accuracy, plots of volcano names and locations were visually compared with other Alaska maps and volcano listings.
Points were located by compiling previously published data, or in the case of no previously published location, heads-up screen digitization of mapped data using raster images of topographic base maps to an estimated horizontal accuracy of about 1,000 m.
This dataset includes volcano names of volcanoes in Alaska younger than 2 million years, as compiled in Miller and others (1998), Simkin and Siebert (1994), and Wood and Kienle (1990), as well as additional features located by Alaska Volcano Observatory geologists. In instances where the same feature is known by different names, this dataset attempts to use the most common name. In instances where a volcanic feature contains many smaller volcanic vents (for instance, Pyre Peak is a smaller vent at Seguam volcano), this dataset names only the larger feature.
This dataset consists only point data and does not require topology.
Are there legal restrictions on access or use of the data?
- This data set is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
- Any hardcopies or published datasets utilizing these datasets must clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.
Raw Data File 2005-3
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|Data format:||ArcGIS Shapefile (version ESRI ArcGIS 9.x)|
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