Significant United States Earthquakes, 1568-2009

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Abstract/Contents

Abstract: This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological effects, or were otherwise experienced by populations in the United States, Puerto Rico, and U.S. Virgin Islands. Included are earthquakes located in the United States as well as some that occurred in adjacent portions of Canada and Mexico. The main sources for the data are Seismicity of the United States, 1568-1989 and the Preliminary Determination of Epicenters for 1990 to January 2004. This is a replacement for the June 1999 map layer. This layer is part of the 1997-2014 edition National Atlas of the United States.
Purpose: These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States or the U.S. Geological Survey in the use of these data. This map layer is intended for a mixed audience of specialists and non-specialists alike who have a need for general, non-technical information about significant United States earthquakes.

Type of resource	cartographic, software, multimedia
Form	Shapefile
Extent	0.144
Place	Reston, Virginia, US
Publisher	National Atlas of the United States
Date valid	1568 - 2004
Publication date	2005
Language	English
Digital origin	born digital
Map data	1:2000000 ; W 179°59ʹ34ʺ--E 180°/N 68°41ʹ19ʺ--N 12°41ʹ10ʺ, Scale not given ; EPSG::4326

Creator	Geological Survey (U.S.)

Subject	Earthquakes
Subject	Earthquake magnitude
Subject	Earthquake intensity
Subject	Alabama
Subject	Alaska
Subject	Arizona
Subject	Arkansas
Subject	Colorado
Subject	Connecticut
Subject	Delaware
Subject	Florida
Subject	Georgia
Subject	Guam
Subject	Hawaii
Subject	Idaho
Subject	Illinois
Subject	Indiana
Subject	Iowa
Subject	Kansas
Subject	Kentucky
Subject	Louisiana
Subject	Maine
Subject	Maryland
Subject	Massachusetts
Subject	Michigan
Subject	Minnesota
Subject	Mississippi
Subject	Missouri
Subject	Montana
Subject	Nebraska
Subject	Nevada
Subject	New Hampshire
Subject	New Jersey
Subject	New Mexico
Subject	New York (State)
Subject	North Carolina
Subject	North Dakota
Subject	Northern Mariana Islands
Subject	Ohio
Subject	Oklahoma
Subject	Oregon
Subject	Pennsylvania
Subject	Puerto Rico
Subject	Rhode Island
Subject	Rocky Mountains
Subject	South Carolina
Subject	South Dakota
Subject	Tennessee
Subject	Texas
Subject	Utah
Subject	Vermont
Subject	Virginia
Subject	Washington (D.C.)
Subject	Washington (State)
Subject	West Virginia
Subject	Wisconsin
Subject	Wyoming
Subject	United States
Subject	United States Virgin Islands
Subject	1568-2004
Subject	Geoscientific Information
Subject	Environment
Genre	Geospatial data
Genre	Cartographic dataset

Supplemental information	Provided with the downloadable files is a text file, quksigx_references.txt, which contains the reference information for earthquake magnitudes listed in the data.
Location	https://purl.stanford.edu/sy174vb2193

Use and reproduction: This item is in the public domain. There are no restrictions on use.
Copyright: This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation: National Atlas of the United States. (2005). Significant United States Earthquakes, 1568-2009. National Atlas of the United States. Available at: http://purl.stanford.edu/sy174vb2193.

National atlas of the United States of America, 1997-2014

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