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Seismotectonic maps in the vicintiy of New Madrid, Missouri database

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Rhea, Susan, 1995, Seismotectonic maps in the vicintiy of New Madrid, Missouri database: U.S. Geological Survey Open-File Report 95-0574, U.S. Geological Survey, Denver, Colorado.

   Online Links:

   • <http://pubs.usgs.gov/of/1995/ofr-95-0574/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -91.0

   East_Bounding_Coordinate: -89.0

   North_Bounding_Coordinate: 37.0

   South_Bounding_Coordinate: 35.0

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1995

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a vector data set.

   2. What coordinate system is used to represent geographic features?

      The map projection used is Albers Conical Equal Area.

      Projection parameters:

      Standard_Parallel: 29.5

      Longitude_of_Central_Meridian: -90.0

      Latitude_of_Projection_Origin: 23.0

      False_Easting: unknown

      False_Northing: unknown

      Planar coordinates are encoded using Coordinate pair
      Abscissae (x-coordinates) are specified to the nearest unknown
      Ordinates (y-coordinates) are specified to the nearest unknown
      Planar coordinates are specified in unknown

7. How does the data set describe geographic features?

   2x2GRAT.AAT

   graticule for the map (Source: OFR-95-0574)

   NEATCODE

   Location of neat line (Source: OFR-95-0574)

   Value	Definition
   1	neat line
   0	not a neat line

   AXGRAV.PAT

   Axial gravity anomaly (Source: OFR-95-0574)

   GEO

   type of data (Source: OFR-95-0574)

   Value	Definition
   psmap	pseudomap

   AXGRAV.PAT

   Axial gravity anomaly at specific locations (same attributes as polygon coverage AXGRAV.PAT) (Source: OFR-95-0574)

   BASEHYD

   Selected hydrography, selected on the basis of significant ground-shaking or liquefaction potential. (Attributes are remnants of DLG base map) (Source: OFR-95-0574)

   BHLIN_LS.AAT

   Bootheel Lineament as observed on low-altitude photos and transferred to 1:24,000 scale topographic maps (Schweig and others 1992) (Source: OFR-95-0574)

   CODE

   type of lineament (Source: OFR-95-0574)

   Value	Definition
   R1 and R2	Bootheel lineament is less prominent
   B1 and B2	Bootheel lineament is more prominent
   oldstm	Not a tectonic feature

   CITIES.PAT

   selected cities (Source: OFR-95-0574)

   NAME2

   Name of selected cities (Source: OFR-95-0574)

   EPRI.PAT

   damaging earthquakes (moment magnitude ? 5.0) since 1811-12 as defined by EPRI (Johnston, 1994) (Source: OFR-95-0574)

   YEAR

   Year the damaging earthquake occurred (Source: OFR-95-0574)

   Range of values
   Minimum:	1811
   Maximum:	1905
   Units:	years
   Resolution:	1

   MONTH

   Month damaging earth quake occurred (Source: OFR-95-0574)

   Range of values
   Minimum:	1
   Maximum:	12
   Units:	months
   Resolution:	1

   DAY

   Day damaging earthquake occurred (Source: OFR-95-0574)

   Range of values
   Minimum:	4
   Maximum:	31
   Units:	days
   Resolution:	1

   MAG

   Magnitude of damaging earthquake (Source: OFR-95-0574)

   Range of values
   Minimum:	5.0
   Maximum:	8.3
   Units:	magnitude
   Resolution:	0.1

   FAULTS.AAT

   Locations of faults identified by geologic observation (Source: OFR-95-0574)

   CODE

   plotting symbol (Source: OFR-95-0574)

   REF

   Reference for fault (Source: OFR-95-0574)

   GPSPTS.PAT

   Locations of Global Positioning System monuments. (Source: OFR-95-0574)

   ID

   Identifying code (Source: OFR-95-0574)

   AGENCY

   Operator of GPS monument (Source: OFR-95-0574)

   HEIGHT

   Height (elevation) of GPS monument (Source: OFR-95-0574)

   Range of values
   Minimum:	0.0
   Maximum:	175.6
   Units:	meters
   Resolution:	0.1

   DECLIN

   Declination of monument (Source: OFR-95-0574)

   Range of values
   Minimum:	0.0
   Maximum:	3.5
   Units:	degrees
   Resolution:	0.5

   GEOG_LOC

   Geographic location of monument (Source: OFR-95-0574)

   LONG

   Longitude of GPS monument location (Source: OFR-95-0574)

   Range of values
   Minimum:	-90.7150
   Maximum:	-89.2043
   Units:	degrees
   Resolution:	0.0001

   LAT

   Latitude of GPS monument location (Source: OFR-95-0574)

   Range of values
   Minimum:	35.1621
   Maximum:	36.8922
   Units:	degrees
   Resolution:	0.0001

   PLOT

   Plot symbol (Source: OFR-95-0574)

   Range of values
   Minimum:	0
   Maximum:	4

   GRAVSTR.PAT

   Structures identified from gravity-field data (Langenheim, 1995) (Source: OFR-95-0574)

   GEO

   geological name (Source: OFR-95-0574)

   Value	Definition
   hidens	unknown
   pluton

   GRAVSTR.AAT

   Structures identified from gravity-field data (Langenheim, 1995) (Source: OFR-95-0574)

   GEO

   Geolical name (Source: OFR-95-0574)

   Value	Definition
   plutons
   dense core
   (blank)

   GRAVSTR.PAT

   Structures identified from gravity-field data (Langenheim, 1995) (same attributes as polygon coverage GRAVSTR.PAT) (Source: OFR-95-0574)

   HRVPSHAL.AAT

   P-velocity contours for depths 0-5 km (Al-Shukri and Mitchell, 1987) (Source: OFR-95-0574)

   DEPTH

   Depth identifier (Source: OFR-95-0574)

   Range of values
   Minimum:	5
   Maximum:	5
   Units:	kilometers
   Resolution:	1

   VELOC

   Velocity of P-wave (Source: OFR-95-0574)

   Range of values
   Minimum:	5.6
   Maximum:	6.0
   Units:	unknown
   Resolution:	0.1

   HRVPDEEP.AAT

   P-velocity contours for depths 5-14 km (Al-Shukri and Mitchell, 1987) (Source: OFR095-0574)

   DEPTH

   Depth identifier (Source: OFR-95-0574)

   Range of values
   Minimum:	14
   Maximum:	14
   Units:	kilometers
   Resolution:	1

   VELOC

   Velocity of P-wave (Source: OFR-95-0574)

   Range of values
   Minimum:	6.0
   Maximum:	6.2
   Units:	unknown
   Resolution:	0.1

   MAGDEP.PAT

   depth to magnetic basement (Hildenbrand and Hendricks, 1995) (Source: OFR-95-0574)

   DEPTH

   Depth to magnetic basement (Source: OFR-95-0574)

   Range of values
   Minimum:	0.00
   Maximum:	5.75
   Units:	km below sea level
   Resolution:	0.5

   MAGDEP.AAT

   depth to magnetic basement (Hildenbrand and Hendricks, 1995) (Source: OFR-95-0574)

   DEPTH

   Depth to magnetic basement (Source: OFR-95-0574)

   Range of values
   Minimum:	0.00
   Maximum:	5.5
   Units:	km below sea level
   Resolution:	0.5

   MAGDEP.PAT

   depth to magnetic basement (Hildenbrand and Hendricks, 1995) (same attributes as polygon coverage MAGDEP.PAT) (Source: OFR-95-0574)

   MAGSTR.PAT

   Structures identified from magnetic-field data (Source: OFR-95-0574)

   GEO

   Geological structure (Source: OFR-95-0574)

   Value	Definition
   rift
   pluton
   intcom	unknown
   (blank)

   NAME

   Name of structure (if any) (Source: OFR-95-0574)

   MAGSTR.AAT

   Structures identified from magnetic-field data (Source: OFR-95-0574)

   GEO

   Geological structure (Source: OFR-95-0574)

   Value	Definition
   batholith
   embayment
   intcom
   pluton
   rift
   (blank)

   MAGSTR.PAT

   Structures identified from magnetic-field data (same attributes as polygon coverage MAGSTR.PAT) (Source: OFR-95-0574)

   MISCENTERS.AAT

   Fischer and Schumm's (1995) locations of historical centerlines of the Mississippi River from 1765 to 1960 (Source: OFR-95-0574)

   YEAR

   year for which location was determined (Source: OFR-95-0574)

   Range of values
   Minimum:	1765
   Maximum:	1960
   Units:	years
   Resolution:	1

   MISSHORES.AAT

   Fischer and Schumm's (1995) locations of historical shorelines of the Mississippi River from 1765 to 1960 (Source: OFR-95-0574)

   YEAR

   Year for which location was determined (Source: OFR-95-0574)

   Range of values
   Minimum:	1795
   Maximum:	1960
   Units:	years
   Resolution:	1

   MISSPOLY.AAT

   polygon coverage of the Mississippi River extracted from BASEHYD.AAT (same attributes as BASEHYD.AAT) (Source: OFR-95-0574)

   MTSTR.AAT

   Reelfoot Graben structures interpreted from magnetotelluric data (Stanley and Rodriguez, 1992) (Source: OFR-95-0574)

   NAME

   Name of structures (Source: OFR-95-0574)

   Value	Definition
   rift hinge line
   arch trough line

   PZCON.AAT

   paleozoic surface depth contours from Dart (1995) arc attributes (Source: OFR-95-0574)

   DEPTH

   Depth to paleozoic surface (Source: OFR-95-0574)

   Range of values
   Minimum:	-3200
   Maximum:	800
   Units:	unknown
   Resolution:	200

   PZCONPTS.PAT

   Control points for defining the paleozoic surface from Dart (1995) (Source: OFR-95-0574)

   DEP

   Depth (Source: OFR-95-0574)

   Range of values
   Minimum:	-8040
   Maximum:	1300
   Units:	unknown
   Resolution:	1

   X-COORD

   X-coordinate (Source: OFR-95-0574)

   Range of values
   Minimum:	-92.533
   Maximum:	-87.446
   Units:	degrees
   Resolution:	0.001

   Y-COORD

   Y-coordinate (Source: OFR-95-0574)

   Range of values
   Minimum:	33.795
   Maximum:	38.022
   Units:	degrees
   Resolution:	0.001

   QD24K.PAT

   polygons of the 1:24000 scale topographic maps in the area (Source: OFR-95-0574)

   LONG

   Longtitude at center of quadrangle (Source: OFR-95-0574)

   Range of values
   Minimum:	-90.9375
   Maximum:	-89.0625
   Units:	degrees
   Resolution:	0.0001

   LAT

   Latitude of center of quadrangle (Source: OFR-95-0574)

   Range of values
   Minimum:	35.0625
   Maximum:	36.9375
   Units:	degrees
   Resolution:	0.0001

   NAME

   Qaudrangle name (Source: OFR-95-0574)

   STATE

   State the quadrangle mainly covers (Source: OFR-95-0574)

   Value	Definition
   AR	Arkansas
   KY	Kentucky
   Mo	Missouri
   TN	Tennessee

   QD24K.PAT

   Points at the center of the 1:24000 scale topographic maps in the area (same attributes as polygon coverage QD24K.PAT) (Source: OFR-95-0574)

   RAILRDS.AAT

   Railroads on the 100k DLG's (Attributes are remnants of DLG base map) (Source: OFR-95-0574)

   RIVANOM.PAT, and RIVANOM.AAT

   river anomalies throughout the New Madrid region identified by Fischer and Schumm (1995) (Source: OFR-95-0574)

   SEISSTA.PAT

   Locations of siesmograph stations that have operated in the New Madrid region since July 1974. (Source: OFR-95-0574)

   LONG

   Longitude of station (Source: OFR-95-0574)

   Range of values
   Minimum:	-90.7160
   Maximum:	-89.0200
   Units:	degrees
   Resolution:	0.0001

   LAT

   Latitude of station (Source: OFR-95-0574)

   Range of values
   Minimum:	35.1220
   Maximum:	36.8860
   Units:	degrees
   Resolution:	0.0001

   STA

   Station name (Source: OFR-95-0574)

   START

   Start date of station operating (Source: OFR-95-0574)

   Range of values
   Minimum:	741120
   Maximum:	890808
   Units:	year, month, date
   Resolution:	1 day

   STOP

   Stop date of station operating (Source: OFR-95-0574)

   Value	Definition
   999999	Station functioning at time of publication

   Range of values
   Minimum:	881201
   Maximum:	920200
   Units:	year, month, day
   Resolution:	1 day

   SELWELL.PAT

   Selected wells from Dart (1992) (Described in Dart (1992) and include, for example, location, owner, id, depth to various formations, and thickness of various formations) (Source: OFR-95-0574)

   STRESSPTS.PAT

   stress orientations either from borehole breakouts or earthquake focal mechanism solutions updated in Ellis (1994) (Source: OFR-95-0574)

   DIR

   Direction of stress symbol (Source: OFR-95-0574)

   Value	Definition
   0	unknown direction

   Range of values
   Minimum:	40
   Maximum:	272
   Units:	degrees
   Resolution:	1

   TYPE

   Type (Source: OFR-95-0574)

   Value	Definition
   b	borehold breakout
   e	earthquake focal mechanism

   X-COORD

   X-coordinate (Source: OFR-95-0574)

   Value	Definition
   0.000	unknown location

   Range of values
   Minimum:	-90.478
   Maximum:	-89.511
   Units:	degrees
   Resolution:	0.001

   Y-COORD

   Y-coordinate (Source: OFR-95-0574)

   Value	Definition
   0.000	unknown location

   Range of values
   Minimum:	35.585
   Maximum:	36.642
   Units:	degrees
   Resolution:	0.001

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Susan Rhea

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Rhea, B. Susan
   USGS-GEO-CRG-GHZ
   Mail Stop 966, USGS
   P.O. Box 25046
   Lakewood, CO 80225
   US
   

   303-273-8639 (voice)
   rhea@usgs.gov
   

Why was the data set created?

To provide to the public a digital geologic map database of seismotectonic maps in the vicinity of New Madrid, Missouri.

How was the data set created?

1. From what previous works were the data drawn?

2. How were the data generated, processed, and modified?

3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: none

Use_Constraints: none

1. Who distributes the data set? (Distributor 1 of 1)
   USGS Information Services
   Box 25286, Denver Federal Center
   Denver, Colorado 80255-0046
   USA
   

   1-888-ASK-USGS (voice)
   1-303-202-4695 (FAX)
   infoservices@usgs.gov
   

2. What's the catalog number I need to order this data set?

   US Geological Survey Open File Report 95-0574

3. What legal disclaimers am I supposed to read?

   This report is preliminary and has not be en reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
   This database, identified as mf2264, has been approved for release and publication by the Director of the USGS. Although the database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:

     ARC/INFO coverage Description of coverage 2x2grat graticule for the map 2x2grattic point cover of all the .1250 interval tics in the 2x2grat area axgrav axial gravity anomaly (Langenheim, 1995) basehyd selected hydrography, selected on the basis of significant ground-shaking or liquefaction potential bhlin_24k Bootheel Lineament as observed on low-altitude photos and transferred to 1:24,000 scale topographic maps (Schweig and others 1992) bhlin_ls Bootheel Lineament as observed on landsat images cities selected cities cnty state and county borders in the map area enrgcen locations of probable subsurface ruptures of the 1811-12 earthquakes, as defined by sandblow distribution (Obermeier, 1989) epri damaging earthquakes (moment magnitude ? 5.0) since 1811-12 as defined by EPRI (Johnston, 1994) eqk_slu earthquakes located by the St. Louis University from July 1974 to December 1992, Taylor and others (1991) faults locations of faults identified by geologic observation gpspts locations of Global Positioning System monuments gravstr structures identified from gravity-field data (Langenheim,1995) gwanom locations of ground-water anomalies (Brahana and Mesko, 1994) intcom intrusive complexes defined by aeromagnetic studies (Hildenbrand and Hendricks, 1995) hrvpdeep P-velocity contours for depths 5 - 14 km (Al-Shukri and Mitchell, 1987) hrvpshal P-velocity contours for depths 0 - 5 km (Al-Shukri and Mitchell, 1987) landslide landslides along the Chickasaw Bluffs, mapped by Jibson and Keefer (1988) at 1:62,500 scale magdep depth to magnetic basement (Hildenbrand and Hendricks, 1995) misspoly polygon coverage of the Mississippi River extracted from basehyd miscenters Fischer and Schumm's (1995) locations of historical centerlines misshores Fischer and Schumm's (1995) locations of historical shorelines of the Mississippi River from 1765 to 1960 mtstr Reelfoot Graben structures interpreted from magnetotelluric data pzcon paleozoic surface depth contours from Dart (1995) pzconpts control points for defining the paleozoic surface from Dart (1995) pzsub subcrop contacts on the paleozoic surface from Dart (1995) qd24k polygons of the 1:24000 scale topographic maps in the area railrds railroads on the 100k DLG's rds class 1 and 2 roads (major 4-lane and principle 2-lane roads) reflstr structures identified in seismic reflection research rivanom river anomalies throughout the New Madrid region identified by Fischer and Schumm (1995) sblows outlines of Obermeier's (1989) definitions of areas covered by greater than 1% and greater than 25% sandblows from the 1811-12 earthquakes selwell selected wells from Dart (1992) sfcstr significant structures visible at the surface in the vicinity of New Madrid seissta locations of seismograph stations that have operated in the New Madrid region since July 1974 states arcs from cnty with bndytype = 1; see cnty for description stresspts stress orientations either from borehole breakouts or earthquake focal mechanism solutions updated in Ellis (1994) strmot strong motion seismometers trench trenches examined for prehistoric earthquakes and a report has been published well wells from Dart (1992) in the map area. See selwell for wells used in MF-2264 in format ArcInfo export (version 7.x) Size: 3.8 megabytes

     Network links:

     <http://pubs.usgs.gov/of/1995/ofr-95-0574/download/ofr950574.zip>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 25-Aug-2000

Metadata author:

Jennifer Lenz
US Geological Survey
12201 Surise Valley Drive, Mail Stop 918
Reston, VA 20192
USA

703-648-6974 (voice)
703-648-6560 (FAX)
pschweitzer@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)