Shear wave velocity- and geology-based seismic microzonation of port-au-prince, Haiti

Brady R. Cox; Jeff Bachhuber; Ellen Rathje; Clinton M. Wood; Ranon Dulberg; Albert Kottke; Russell A. Green; Scott M. Olson

doi:10.1193/1.3630226

Shear wave velocity- and geology-based seismic microzonation of port-au-prince, Haiti

Brady R. Cox, Jeff Bachhuber, Ellen Rathje, Clinton M. Wood, Ranon Dulberg, Albert Kottke, Russell A. Green, Scott M. Olson

Research output: Contribution to journal › Article › peer-review

Abstract

A seismic site classification microzonation for the city of Port-au-Prince is presented herein. The microzonation is based on 35 shear wave velocity (VS) profiles collected throughout the city and a new geologic map of the region. The VS profiles were obtained using the multichannel analysis of surface waves (MASW) method, while the geologic map was developed from a combination of field mapping and geomorphic interpretation of a digital elevation model (DEM). Relationships between mean shear wave velocity over the upper 30 m of the subsurface (VS30) and surficial geologic unit have been developed, permitting code-based seismic site classification throughout the city. A site classification map for the National Earthquake Hazards Reduction Program=International Building Code (NEHRP=IBC) classification scheme is provided herein. Much of the city is founded on deposits that classify as either NEHRP Site Class C or D, based on VS30. Areas of the city requiring additional subsurface information for accurate site classification are noted.

Original language	English (US)
Pages (from-to)	S67-S92
Journal	Earthquake Spectra
Volume	27
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1193/1.3630226
State	Published - Oct 1 2011

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geophysics

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title = "Shear wave velocity- and geology-based seismic microzonation of port-au-prince, Haiti",

abstract = "A seismic site classification microzonation for the city of Port-au-Prince is presented herein. The microzonation is based on 35 shear wave velocity (VS) profiles collected throughout the city and a new geologic map of the region. The VS profiles were obtained using the multichannel analysis of surface waves (MASW) method, while the geologic map was developed from a combination of field mapping and geomorphic interpretation of a digital elevation model (DEM). Relationships between mean shear wave velocity over the upper 30 m of the subsurface (VS30) and surficial geologic unit have been developed, permitting code-based seismic site classification throughout the city. A site classification map for the National Earthquake Hazards Reduction Program=International Building Code (NEHRP=IBC) classification scheme is provided herein. Much of the city is founded on deposits that classify as either NEHRP Site Class C or D, based on VS30. Areas of the city requiring additional subsurface information for accurate site classification are noted.",

author = "Cox, {Brady R.} and Jeff Bachhuber and Ellen Rathje and Wood, {Clinton M.} and Ranon Dulberg and Albert Kottke and Green, {Russell A.} and Olson, {Scott M.}",

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language = "English (US)",

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AU - Cox, Brady R.

AU - Bachhuber, Jeff

AU - Rathje, Ellen

AU - Wood, Clinton M.

AU - Dulberg, Ranon

AU - Kottke, Albert

AU - Green, Russell A.

AU - Olson, Scott M.

PY - 2011/10/1

Y1 - 2011/10/1

N2 - A seismic site classification microzonation for the city of Port-au-Prince is presented herein. The microzonation is based on 35 shear wave velocity (VS) profiles collected throughout the city and a new geologic map of the region. The VS profiles were obtained using the multichannel analysis of surface waves (MASW) method, while the geologic map was developed from a combination of field mapping and geomorphic interpretation of a digital elevation model (DEM). Relationships between mean shear wave velocity over the upper 30 m of the subsurface (VS30) and surficial geologic unit have been developed, permitting code-based seismic site classification throughout the city. A site classification map for the National Earthquake Hazards Reduction Program=International Building Code (NEHRP=IBC) classification scheme is provided herein. Much of the city is founded on deposits that classify as either NEHRP Site Class C or D, based on VS30. Areas of the city requiring additional subsurface information for accurate site classification are noted.

AB - A seismic site classification microzonation for the city of Port-au-Prince is presented herein. The microzonation is based on 35 shear wave velocity (VS) profiles collected throughout the city and a new geologic map of the region. The VS profiles were obtained using the multichannel analysis of surface waves (MASW) method, while the geologic map was developed from a combination of field mapping and geomorphic interpretation of a digital elevation model (DEM). Relationships between mean shear wave velocity over the upper 30 m of the subsurface (VS30) and surficial geologic unit have been developed, permitting code-based seismic site classification throughout the city. A site classification map for the National Earthquake Hazards Reduction Program=International Building Code (NEHRP=IBC) classification scheme is provided herein. Much of the city is founded on deposits that classify as either NEHRP Site Class C or D, based on VS30. Areas of the city requiring additional subsurface information for accurate site classification are noted.

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Shear wave velocity- and geology-based seismic microzonation of port-au-prince, Haiti

Abstract

ASJC Scopus subject areas

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