Evaluation of hypotheses for the cause of the 1886 Charleston earthquake
- Law Environmental, Inc., Kennesaw, GA (USA)
This report describes a geophysical/geological investigation of the earth's crust at seismogenic depths in the Charleston, South Carolina area. This investigation was made for the purpose of narrowing the range of theories that have been used to explain the historic 1886 Charleston earthquake. Since a number of these theories are based on only a portion of the available data, we have established a comprehensive data set in order to allow these hypotheses to be subjected to the entire data set. Specifically, we combined existing and new gravity, magnetic and topographic data in grids of 128 km, 256 km and 1028 km on a side centered on Charleston. Seismic, geologic and drilling data were collected and summarized. A magnetotelluric survey consisting of 12 soundings interpreted to depths of over 40 kilometers defined the bottom of the rigid crust with assistance from seismic reflection and other data. A geologic model of the crust in the area of Charleston was constructed and it defined the locations of Triassic/Jurassic basins Paleozoic plutons in greater detail than has previously been achieved. 102 refs., 75 figs.
- Research Organization:
- Nuclear Regulatory Commission, Washington, DC (USA). Div. of Engineering; Law Environmental, Inc., Kennesaw, GA (USA); Georgia Inst. of Tech., Atlanta, GA (USA)
- Sponsoring Organization:
- NRC
- OSTI ID:
- 5557889
- Report Number(s):
- NUREG/CR-5269; ON: TI90002284
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989)
DOCUMENT TYPES
FEDERAL REGION IV
GEOLOGIC MODELS
GEOLOGIC SURVEYS
HISTORICAL ASPECTS
MATHEMATICAL MODELS
NORTH AMERICA
PROGRESS REPORT
SEISMIC EVENTS
SOUTH CAROLINA
SURVEYS
THREE-DIMENSIONAL CALCULATIONS
USA
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989)
DOCUMENT TYPES
FEDERAL REGION IV
GEOLOGIC MODELS
GEOLOGIC SURVEYS
HISTORICAL ASPECTS
MATHEMATICAL MODELS
NORTH AMERICA
PROGRESS REPORT
SEISMIC EVENTS
SOUTH CAROLINA
SURVEYS
THREE-DIMENSIONAL CALCULATIONS
USA